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Finding the Fourth Proportional to 616,616.52, 922,682.76 and 508,999.74

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Solution

The fourth proportional to 616,616.52, 922,682.76 and 508,999.74 is: 761,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,616.52 : 922,682.76 = 508,999.74 : x
  2. Step 2: Convert to fraction form
    616,616.52/922,682.76 = 508,999.74/x
  3. Step 3: Cross multiply
    616,616.52x = 922,682.76 × 508,999.74
  4. Step 4: Simplify right side
    616,616.52x = 469,645,284,942.48
  5. Step 5: Solve for x
    x = 469,645,284,942.48/616,616.52
  6. Step 6: Final answer
    x = 761,648.89

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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.