Home / 672,647.14-928,216.02-386,148.52

Finding the Fourth Proportional to 672,647.14, 928,216.02 and 386,148.52

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Solution

The fourth proportional to 672,647.14, 928,216.02 and 386,148.52 is: 532,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,647.14 : 928,216.02 = 386,148.52 : x
  2. Step 2: Convert to fraction form
    672,647.14/928,216.02 = 386,148.52/x
  3. Step 3: Cross multiply
    672,647.14x = 928,216.02 × 386,148.52
  4. Step 4: Simplify right side
    672,647.14x = 358,429,242,363.29
  5. Step 5: Solve for x
    x = 358,429,242,363.29/672,647.14
  6. Step 6: Final answer
    x = 532,863.70

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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.