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Finding the Fourth Proportional to 605,411.40, 908,117.10 and 381,462.60

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Solution

The fourth proportional to 605,411.40, 908,117.10 and 381,462.60 is: 572,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,411.40 : 908,117.10 = 381,462.60 : x
  2. Step 2: Convert to fraction form
    605,411.40/908,117.10 = 381,462.60/x
  3. Step 3: Cross multiply
    605,411.40x = 908,117.10 × 381,462.60
  4. Step 4: Simplify right side
    605,411.40x = 346,412,710,070.46
  5. Step 5: Solve for x
    x = 346,412,710,070.46/605,411.40
  6. Step 6: Final answer
    x = 572,193.90

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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.