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Finding the Fourth Proportional to 502,606.64, 693,758.80 and 321,805.52

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Solution

The fourth proportional to 502,606.64, 693,758.80 and 321,805.52 is: 444,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,606.64 : 693,758.80 = 321,805.52 : x
  2. Step 2: Convert to fraction form
    502,606.64/693,758.80 = 321,805.52/x
  3. Step 3: Cross multiply
    502,606.64x = 693,758.80 × 321,805.52
  4. Step 4: Simplify right side
    502,606.64x = 223,255,411,388.58
  5. Step 5: Solve for x
    x = 223,255,411,388.58/502,606.64
  6. Step 6: Final answer
    x = 444,195.11

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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.