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Finding the Fourth Proportional to 418,532.34, 577,571.78 and 227,545.74

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Solution

The fourth proportional to 418,532.34, 577,571.78 and 227,545.74 is: 314,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,532.34 : 577,571.78 = 227,545.74 : x
  2. Step 2: Convert to fraction form
    418,532.34/577,571.78 = 227,545.74/x
  3. Step 3: Cross multiply
    418,532.34x = 577,571.78 × 227,545.74
  4. Step 4: Simplify right side
    418,532.34x = 131,423,998,083.22
  5. Step 5: Solve for x
    x = 131,423,998,083.22/418,532.34
  6. Step 6: Final answer
    x = 314,011.57

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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.