Home / 672,646.14-928,214.64-386,147.52

Finding the Fourth Proportional to 672,646.14, 928,214.64 and 386,147.52

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Solution

The fourth proportional to 672,646.14, 928,214.64 and 386,147.52 is: 532,862.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,646.14 : 928,214.64 = 386,147.52 : x
  2. Step 2: Convert to fraction form
    672,646.14/928,214.64 = 386,147.52/x
  3. Step 3: Cross multiply
    672,646.14x = 928,214.64 × 386,147.52
  4. Step 4: Simplify right side
    672,646.14x = 358,427,781,263.69
  5. Step 5: Solve for x
    x = 358,427,781,263.69/672,646.14
  6. Step 6: Final answer
    x = 532,862.32

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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.