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Finding the Fourth Proportional to 539,368.30, 809,052.45 and 371,406.70

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Solution

The fourth proportional to 539,368.30, 809,052.45 and 371,406.70 is: 557,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,368.30 : 809,052.45 = 371,406.70 : x
  2. Step 2: Convert to fraction form
    539,368.30/809,052.45 = 371,406.70/x
  3. Step 3: Cross multiply
    539,368.30x = 809,052.45 × 371,406.70
  4. Step 4: Simplify right side
    539,368.30x = 300,487,500,581.42
  5. Step 5: Solve for x
    x = 300,487,500,581.42/539,368.30
  6. Step 6: Final answer
    x = 557,110.05

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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.