Home / 917,251.20-1,373,155.20-681,638.40

Finding the Fourth Proportional to 917,251.20, 1,373,155.20 and 681,638.40

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Solution

The fourth proportional to 917,251.20, 1,373,155.20 and 681,638.40 is: 1,020,435.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,251.20 : 1,373,155.20 = 681,638.40 : x
  2. Step 2: Convert to fraction form
    917,251.20/1,373,155.20 = 681,638.40/x
  3. Step 3: Cross multiply
    917,251.20x = 1,373,155.20 × 681,638.40
  4. Step 4: Simplify right side
    917,251.20x = 935,995,313,479.68
  5. Step 5: Solve for x
    x = 935,995,313,479.68/917,251.20
  6. Step 6: Final answer
    x = 1,020,435.09

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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.