Home / 915,712.20-1,373,568.30-814,235.40

Finding the Fourth Proportional to 915,712.20, 1,373,568.30 and 814,235.40

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Solution

The fourth proportional to 915,712.20, 1,373,568.30 and 814,235.40 is: 1,221,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,712.20 : 1,373,568.30 = 814,235.40 : x
  2. Step 2: Convert to fraction form
    915,712.20/1,373,568.30 = 814,235.40/x
  3. Step 3: Cross multiply
    915,712.20x = 1,373,568.30 × 814,235.40
  4. Step 4: Simplify right side
    915,712.20x = 1,118,407,934,177.82
  5. Step 5: Solve for x
    x = 1,118,407,934,177.82/915,712.20
  6. Step 6: Final answer
    x = 1,221,353.10

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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.