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Finding the Fourth Proportional to 626,326.20, 864,554.28 and 371,677.32

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Solution

The fourth proportional to 626,326.20, 864,554.28 and 371,677.32 is: 513,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,326.20 : 864,554.28 = 371,677.32 : x
  2. Step 2: Convert to fraction form
    626,326.20/864,554.28 = 371,677.32/x
  3. Step 3: Cross multiply
    626,326.20x = 864,554.28 × 371,677.32
  4. Step 4: Simplify right side
    626,326.20x = 321,335,217,784.93
  5. Step 5: Solve for x
    x = 321,335,217,784.93/626,326.20
  6. Step 6: Final answer
    x = 513,047.70

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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.