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Finding the Fourth Proportional to 539,972.20, 809,267.10 and 477,764.20

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Solution

The fourth proportional to 539,972.20, 809,267.10 and 477,764.20 is: 716,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,972.20 : 809,267.10 = 477,764.20 : x
  2. Step 2: Convert to fraction form
    539,972.20/809,267.10 = 477,764.20/x
  3. Step 3: Cross multiply
    539,972.20x = 809,267.10 × 477,764.20
  4. Step 4: Simplify right side
    539,972.20x = 386,638,848,617.82
  5. Step 5: Solve for x
    x = 386,638,848,617.82/539,972.20
  6. Step 6: Final answer
    x = 716,034.73

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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.