Home / 919,865.50-1,379,798.25-255,017.50

Finding the Fourth Proportional to 919,865.50, 1,379,798.25 and 255,017.50

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Solution

The fourth proportional to 919,865.50, 1,379,798.25 and 255,017.50 is: 382,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,865.50 : 1,379,798.25 = 255,017.50 : x
  2. Step 2: Convert to fraction form
    919,865.50/1,379,798.25 = 255,017.50/x
  3. Step 3: Cross multiply
    919,865.50x = 1,379,798.25 × 255,017.50
  4. Step 4: Simplify right side
    919,865.50x = 351,872,700,219.38
  5. Step 5: Solve for x
    x = 351,872,700,219.38/919,865.50
  6. Step 6: Final answer
    x = 382,526.25

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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.