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Finding the Fourth Proportional to 902,565.12, 1,353,885.12 and 744,499.20

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Solution

The fourth proportional to 902,565.12, 1,353,885.12 and 744,499.20 is: 1,116,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,565.12 : 1,353,885.12 = 744,499.20 : x
  2. Step 2: Convert to fraction form
    902,565.12/1,353,885.12 = 744,499.20/x
  3. Step 3: Cross multiply
    902,565.12x = 1,353,885.12 × 744,499.20
  4. Step 4: Simplify right side
    902,565.12x = 1,007,966,388,731.90
  5. Step 5: Solve for x
    x = 1,007,966,388,731.90/902,565.12
  6. Step 6: Final answer
    x = 1,116,779.68

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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.