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Finding the Fourth Proportional to 454,014.60, 679,985.10 and 267,390.60

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Solution

The fourth proportional to 454,014.60, 679,985.10 and 267,390.60 is: 400,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,014.60 : 679,985.10 = 267,390.60 : x
  2. Step 2: Convert to fraction form
    454,014.60/679,985.10 = 267,390.60/x
  3. Step 3: Cross multiply
    454,014.60x = 679,985.10 × 267,390.60
  4. Step 4: Simplify right side
    454,014.60x = 181,821,623,880.06
  5. Step 5: Solve for x
    x = 181,821,623,880.06/454,014.60
  6. Step 6: Final answer
    x = 400,475.28

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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.