Home / 987,278.40-1,480,480.20-454,962.60

Finding the Fourth Proportional to 987,278.40, 1,480,480.20 and 454,962.60

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Solution

The fourth proportional to 987,278.40, 1,480,480.20 and 454,962.60 is: 682,242.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,278.40 : 1,480,480.20 = 454,962.60 : x
  2. Step 2: Convert to fraction form
    987,278.40/1,480,480.20 = 454,962.60/x
  3. Step 3: Cross multiply
    987,278.40x = 1,480,480.20 × 454,962.60
  4. Step 4: Simplify right side
    987,278.40x = 673,563,121,040.52
  5. Step 5: Solve for x
    x = 673,563,121,040.52/987,278.40
  6. Step 6: Final answer
    x = 682,242.34

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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.