Home / 915,645.30-1,373,139.90-466,216.80

Finding the Fourth Proportional to 915,645.30, 1,373,139.90 and 466,216.80

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Solution

The fourth proportional to 915,645.30, 1,373,139.90 and 466,216.80 is: 699,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,645.30 : 1,373,139.90 = 466,216.80 : x
  2. Step 2: Convert to fraction form
    915,645.30/1,373,139.90 = 466,216.80/x
  3. Step 3: Cross multiply
    915,645.30x = 1,373,139.90 × 466,216.80
  4. Step 4: Simplify right side
    915,645.30x = 640,180,890,130.32
  5. Step 5: Solve for x
    x = 640,180,890,130.32/915,645.30
  6. Step 6: Final answer
    x = 699,158.17

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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.