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Finding the Fourth Proportional to 475,637.66, 655,998.80 and 418,154.79

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Solution

The fourth proportional to 475,637.66, 655,998.80 and 418,154.79 is: 576,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,637.66 : 655,998.80 = 418,154.79 : x
  2. Step 2: Convert to fraction form
    475,637.66/655,998.80 = 418,154.79/x
  3. Step 3: Cross multiply
    475,637.66x = 655,998.80 × 418,154.79
  4. Step 4: Simplify right side
    475,637.66x = 274,309,038,363.48
  5. Step 5: Solve for x
    x = 274,309,038,363.48/475,637.66
  6. Step 6: Final answer
    x = 576,718.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.