Home / 629,320.52-868,468.28-357,394.08

Finding the Fourth Proportional to 629,320.52, 868,468.28 and 357,394.08

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Solution

The fourth proportional to 629,320.52, 868,468.28 and 357,394.08 is: 493,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,320.52 : 868,468.28 = 357,394.08 : x
  2. Step 2: Convert to fraction form
    629,320.52/868,468.28 = 357,394.08/x
  3. Step 3: Cross multiply
    629,320.52x = 868,468.28 × 357,394.08
  4. Step 4: Simplify right side
    629,320.52x = 310,385,421,939.78
  5. Step 5: Solve for x
    x = 310,385,421,939.78/629,320.52
  6. Step 6: Final answer
    x = 493,207.22

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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.