Home / 980,000.27-1,469,689.36-314,996.75

Finding the Fourth Proportional to 980,000.27, 1,469,689.36 and 314,996.75

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Solution

The fourth proportional to 980,000.27, 1,469,689.36 and 314,996.75 is: 472,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,000.27 : 1,469,689.36 = 314,996.75 : x
  2. Step 2: Convert to fraction form
    980,000.27/1,469,689.36 = 314,996.75/x
  3. Step 3: Cross multiply
    980,000.27x = 1,469,689.36 × 314,996.75
  4. Step 4: Simplify right side
    980,000.27x = 462,947,371,909.58
  5. Step 5: Solve for x
    x = 462,947,371,909.58/980,000.27
  6. Step 6: Final answer
    x = 472,395.15

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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.