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Finding the Fourth Proportional to 636,139.60, 954,209.40 and 549,534.40

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Solution

The fourth proportional to 636,139.60, 954,209.40 and 549,534.40 is: 824,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,139.60 : 954,209.40 = 549,534.40 : x
  2. Step 2: Convert to fraction form
    636,139.60/954,209.40 = 549,534.40/x
  3. Step 3: Cross multiply
    636,139.60x = 954,209.40 × 549,534.40
  4. Step 4: Simplify right side
    636,139.60x = 524,370,890,103.36
  5. Step 5: Solve for x
    x = 524,370,890,103.36/636,139.60
  6. Step 6: Final answer
    x = 824,301.60

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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.