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Finding the Fourth Proportional to 660,327.92, 988,284.88 and 375,942.12

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Solution

The fourth proportional to 660,327.92, 988,284.88 and 375,942.12 is: 562,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,327.92 : 988,284.88 = 375,942.12 : x
  2. Step 2: Convert to fraction form
    660,327.92/988,284.88 = 375,942.12/x
  3. Step 3: Cross multiply
    660,327.92x = 988,284.88 × 375,942.12
  4. Step 4: Simplify right side
    660,327.92x = 371,537,912,951.15
  5. Step 5: Solve for x
    x = 371,537,912,951.15/660,327.92
  6. Step 6: Final answer
    x = 562,656.68

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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.