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Finding the Fourth Proportional to 566,030.61, 781,480.80 and 351,398.43

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Solution

The fourth proportional to 566,030.61, 781,480.80 and 351,398.43 is: 485,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,030.61 : 781,480.80 = 351,398.43 : x
  2. Step 2: Convert to fraction form
    566,030.61/781,480.80 = 351,398.43/x
  3. Step 3: Cross multiply
    566,030.61x = 781,480.80 × 351,398.43
  4. Step 4: Simplify right side
    566,030.61x = 274,611,126,195.14
  5. Step 5: Solve for x
    x = 274,611,126,195.14/566,030.61
  6. Step 6: Final answer
    x = 485,152.43

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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.