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Finding the Fourth Proportional to 641,697.92, 963,492.96 and 357,942.88

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Solution

The fourth proportional to 641,697.92, 963,492.96 and 357,942.88 is: 537,442.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,697.92 : 963,492.96 = 357,942.88 : x
  2. Step 2: Convert to fraction form
    641,697.92/963,492.96 = 357,942.88/x
  3. Step 3: Cross multiply
    641,697.92x = 963,492.96 × 357,942.88
  4. Step 4: Simplify right side
    641,697.92x = 344,875,444,962.13
  5. Step 5: Solve for x
    x = 344,875,444,962.13/641,697.92
  6. Step 6: Final answer
    x = 537,442.05

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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.