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Finding the Fourth Proportional to 636,236.40, 954,354.60 and 486,937.20

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Solution

The fourth proportional to 636,236.40, 954,354.60 and 486,937.20 is: 730,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,236.40 : 954,354.60 = 486,937.20 : x
  2. Step 2: Convert to fraction form
    636,236.40/954,354.60 = 486,937.20/x
  3. Step 3: Cross multiply
    636,236.40x = 954,354.60 × 486,937.20
  4. Step 4: Simplify right side
    636,236.40x = 464,710,756,731.12
  5. Step 5: Solve for x
    x = 464,710,756,731.12/636,236.40
  6. Step 6: Final answer
    x = 730,405.80

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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.