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Finding the Fourth Proportional to 636,122.88, 954,340.56 and 316,425.60

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Solution

The fourth proportional to 636,122.88, 954,340.56 and 316,425.60 is: 474,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,122.88 : 954,340.56 = 316,425.60 : x
  2. Step 2: Convert to fraction form
    636,122.88/954,340.56 = 316,425.60/x
  3. Step 3: Cross multiply
    636,122.88x = 954,340.56 × 316,425.60
  4. Step 4: Simplify right side
    636,122.88x = 301,977,784,302.34
  5. Step 5: Solve for x
    x = 301,977,784,302.34/636,122.88
  6. Step 6: Final answer
    x = 474,716.12

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1.5x scale

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.