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Finding the Fourth Proportional to 539,467.70, 809,201.55 and 371,506.10

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Solution

The fourth proportional to 539,467.70, 809,201.55 and 371,506.10 is: 557,259.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,467.70 : 809,201.55 = 371,506.10 : x
  2. Step 2: Convert to fraction form
    539,467.70/809,201.55 = 371,506.10/x
  3. Step 3: Cross multiply
    539,467.70x = 809,201.55 × 371,506.10
  4. Step 4: Simplify right side
    539,467.70x = 300,623,311,954.46
  5. Step 5: Solve for x
    x = 300,623,311,954.46/539,467.70
  6. Step 6: Final answer
    x = 557,259.15

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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.