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Finding the Fourth Proportional to 636,138.10, 954,207.15 and 549,532.90

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Solution

The fourth proportional to 636,138.10, 954,207.15 and 549,532.90 is: 824,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,138.10 : 954,207.15 = 549,532.90 : x
  2. Step 2: Convert to fraction form
    636,138.10/954,207.15 = 549,532.90/x
  3. Step 3: Cross multiply
    636,138.10x = 954,207.15 × 549,532.90
  4. Step 4: Simplify right side
    636,138.10x = 524,368,222,340.24
  5. Step 5: Solve for x
    x = 524,368,222,340.24/636,138.10
  6. Step 6: Final answer
    x = 824,299.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.