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Finding the Fourth Proportional to 672,483.99, 928,083.44 and 386,059.35

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Solution

The fourth proportional to 672,483.99, 928,083.44 and 386,059.35 is: 532,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,483.99 : 928,083.44 = 386,059.35 : x
  2. Step 2: Convert to fraction form
    672,483.99/928,083.44 = 386,059.35/x
  3. Step 3: Cross multiply
    672,483.99x = 928,083.44 × 386,059.35
  4. Step 4: Simplify right side
    672,483.99x = 358,295,289,592.16
  5. Step 5: Solve for x
    x = 358,295,289,592.16/672,483.99
  6. Step 6: Final answer
    x = 532,793.78

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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.