Home / 747,347.40-1,120,802.40-267,519.60

Finding the Fourth Proportional to 747,347.40, 1,120,802.40 and 267,519.60

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Solution

The fourth proportional to 747,347.40, 1,120,802.40 and 267,519.60 is: 401,201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,347.40 : 1,120,802.40 = 267,519.60 : x
  2. Step 2: Convert to fraction form
    747,347.40/1,120,802.40 = 267,519.60/x
  3. Step 3: Cross multiply
    747,347.40x = 1,120,802.40 × 267,519.60
  4. Step 4: Simplify right side
    747,347.40x = 299,836,609,727.04
  5. Step 5: Solve for x
    x = 299,836,609,727.04/747,347.40
  6. Step 6: Final answer
    x = 401,201.11

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1.5x scale

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.