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Finding the Fourth Proportional to 478,849.12, 717,354.24 and 267,847.36

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Solution

The fourth proportional to 478,849.12, 717,354.24 and 267,847.36 is: 401,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,849.12 : 717,354.24 = 267,847.36 : x
  2. Step 2: Convert to fraction form
    478,849.12/717,354.24 = 267,847.36/x
  3. Step 3: Cross multiply
    478,849.12x = 717,354.24 × 267,847.36
  4. Step 4: Simplify right side
    478,849.12x = 192,141,439,368.81
  5. Step 5: Solve for x
    x = 192,141,439,368.81/478,849.12
  6. Step 6: Final answer
    x = 401,256.75

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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.