Home / 672,876.72-928,538.64-386,195.04

Finding the Fourth Proportional to 672,876.72, 928,538.64 and 386,195.04

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Solution

The fourth proportional to 672,876.72, 928,538.64 and 386,195.04 is: 532,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,876.72 : 928,538.64 = 386,195.04 : x
  2. Step 2: Convert to fraction form
    672,876.72/928,538.64 = 386,195.04/x
  3. Step 3: Cross multiply
    672,876.72x = 928,538.64 × 386,195.04
  4. Step 4: Simplify right side
    672,876.72x = 358,597,017,216.35
  5. Step 5: Solve for x
    x = 358,597,017,216.35/672,876.72
  6. Step 6: Final answer
    x = 532,931.23

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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.