Home / 763,456.60-1,145,184.90-698,138.20

Finding the Fourth Proportional to 763,456.60, 1,145,184.90 and 698,138.20

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Solution

The fourth proportional to 763,456.60, 1,145,184.90 and 698,138.20 is: 1,047,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,456.60 : 1,145,184.90 = 698,138.20 : x
  2. Step 2: Convert to fraction form
    763,456.60/1,145,184.90 = 698,138.20/x
  3. Step 3: Cross multiply
    763,456.60x = 1,145,184.90 × 698,138.20
  4. Step 4: Simplify right side
    763,456.60x = 799,497,324,753.18
  5. Step 5: Solve for x
    x = 799,497,324,753.18/763,456.60
  6. Step 6: Final answer
    x = 1,047,207.30

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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.