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Finding the Fourth Proportional to 539,533.90, 809,300.85 and 371,572.30

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Solution

The fourth proportional to 539,533.90, 809,300.85 and 371,572.30 is: 557,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,533.90 : 809,300.85 = 371,572.30 : x
  2. Step 2: Convert to fraction form
    539,533.90/809,300.85 = 371,572.30/x
  3. Step 3: Cross multiply
    539,533.90x = 809,300.85 × 371,572.30
  4. Step 4: Simplify right side
    539,533.90x = 300,713,778,226.46
  5. Step 5: Solve for x
    x = 300,713,778,226.46/539,533.90
  6. Step 6: Final answer
    x = 557,358.45

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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.