Home / 771,242.60-1,154,531.10-687,261.80

Finding the Fourth Proportional to 771,242.60, 1,154,531.10 and 687,261.80

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Solution

The fourth proportional to 771,242.60, 1,154,531.10 and 687,261.80 is: 1,028,813.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,242.60 : 1,154,531.10 = 687,261.80 : x
  2. Step 2: Convert to fraction form
    771,242.60/1,154,531.10 = 687,261.80/x
  3. Step 3: Cross multiply
    771,242.60x = 1,154,531.10 × 687,261.80
  4. Step 4: Simplify right side
    771,242.60x = 793,465,121,941.98
  5. Step 5: Solve for x
    x = 793,465,121,941.98/771,242.60
  6. Step 6: Final answer
    x = 1,028,813.92

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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.