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Finding the Fourth Proportional to 692,663.64, 955,866.45 and 386,744.73

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Solution

The fourth proportional to 692,663.64, 955,866.45 and 386,744.73 is: 533,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,663.64 : 955,866.45 = 386,744.73 : x
  2. Step 2: Convert to fraction form
    692,663.64/955,866.45 = 386,744.73/x
  3. Step 3: Cross multiply
    692,663.64x = 955,866.45 × 386,744.73
  4. Step 4: Simplify right side
    692,663.64x = 369,676,312,121.31
  5. Step 5: Solve for x
    x = 369,676,312,121.31/692,663.64
  6. Step 6: Final answer
    x = 533,702.49

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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.