Home / 920,606.50-1,380,927.03-255,775.78

Finding the Fourth Proportional to 920,606.50, 1,380,927.03 and 255,775.78

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Solution

The fourth proportional to 920,606.50, 1,380,927.03 and 255,775.78 is: 383,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,606.50 : 1,380,927.03 = 255,775.78 : x
  2. Step 2: Convert to fraction form
    920,606.50/1,380,927.03 = 255,775.78/x
  3. Step 3: Cross multiply
    920,606.50x = 1,380,927.03 × 255,775.78
  4. Step 4: Simplify right side
    920,606.50x = 353,207,688,221.33
  5. Step 5: Solve for x
    x = 353,207,688,221.33/920,606.50
  6. Step 6: Final answer
    x = 383,668.47

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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.