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Finding the Fourth Proportional to 886,950.30, 1,330,295.85 and 255,798.30

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Solution

The fourth proportional to 886,950.30, 1,330,295.85 and 255,798.30 is: 383,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,950.30 : 1,330,295.85 = 255,798.30 : x
  2. Step 2: Convert to fraction form
    886,950.30/1,330,295.85 = 255,798.30/x
  3. Step 3: Cross multiply
    886,950.30x = 1,330,295.85 × 255,798.30
  4. Step 4: Simplify right side
    886,950.30x = 340,287,416,927.06
  5. Step 5: Solve for x
    x = 340,287,416,927.06/886,950.30
  6. Step 6: Final answer
    x = 383,660.07

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.