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Finding the Fourth Proportional to 539,532.40, 809,298.60 and 371,570.80

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Solution

The fourth proportional to 539,532.40, 809,298.60 and 371,570.80 is: 557,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,532.40 : 809,298.60 = 371,570.80 : x
  2. Step 2: Convert to fraction form
    539,532.40/809,298.60 = 371,570.80/x
  3. Step 3: Cross multiply
    539,532.40x = 809,298.60 × 371,570.80
  4. Step 4: Simplify right side
    539,532.40x = 300,711,728,240.88
  5. Step 5: Solve for x
    x = 300,711,728,240.88/539,532.40
  6. Step 6: Final answer
    x = 557,356.20

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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.