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Finding the Fourth Proportional to 662,809.50, 914,678.93 and 376,374.47

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Solution

The fourth proportional to 662,809.50, 914,678.93 and 376,374.47 is: 519,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,809.50 : 914,678.93 = 376,374.47 : x
  2. Step 2: Convert to fraction form
    662,809.50/914,678.93 = 376,374.47/x
  3. Step 3: Cross multiply
    662,809.50x = 914,678.93 × 376,374.47
  4. Step 4: Simplify right side
    662,809.50x = 344,261,793,866.46
  5. Step 5: Solve for x
    x = 344,261,793,866.46/662,809.50
  6. Step 6: Final answer
    x = 519,397.80

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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.