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Finding the Fourth Proportional to 609,345.80, 914,277.90 and 293,640.20

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Solution

The fourth proportional to 609,345.80, 914,277.90 and 293,640.20 is: 440,585.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,345.80 : 914,277.90 = 293,640.20 : x
  2. Step 2: Convert to fraction form
    609,345.80/914,277.90 = 293,640.20/x
  3. Step 3: Cross multiply
    609,345.80x = 914,277.90 × 293,640.20
  4. Step 4: Simplify right side
    609,345.80x = 268,468,745,411.58
  5. Step 5: Solve for x
    x = 268,468,745,411.58/609,345.80
  6. Step 6: Final answer
    x = 440,585.21

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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.