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Finding the Fourth Proportional to 624,726.80, 862,029.97 and 352,789.30

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Solution

The fourth proportional to 624,726.80, 862,029.97 and 352,789.30 is: 486,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,726.80 : 862,029.97 = 352,789.30 : x
  2. Step 2: Convert to fraction form
    624,726.80/862,029.97 = 352,789.30/x
  3. Step 3: Cross multiply
    624,726.80x = 862,029.97 × 352,789.30
  4. Step 4: Simplify right side
    624,726.80x = 304,114,948,458.65
  5. Step 5: Solve for x
    x = 304,114,948,458.65/624,726.80
  6. Step 6: Final answer
    x = 486,796.70

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1.5x scale

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.