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Finding the Fourth Proportional to 539,079.20, 808,618.80 and 504,087.20

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Solution

The fourth proportional to 539,079.20, 808,618.80 and 504,087.20 is: 756,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,079.20 : 808,618.80 = 504,087.20 : x
  2. Step 2: Convert to fraction form
    539,079.20/808,618.80 = 504,087.20/x
  3. Step 3: Cross multiply
    539,079.20x = 808,618.80 × 504,087.20
  4. Step 4: Simplify right side
    539,079.20x = 407,614,386,759.36
  5. Step 5: Solve for x
    x = 407,614,386,759.36/539,079.20
  6. Step 6: Final answer
    x = 756,130.80

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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.