Home / 763,433.60-1,145,150.40-698,115.20

Finding the Fourth Proportional to 763,433.60, 1,145,150.40 and 698,115.20

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Solution

The fourth proportional to 763,433.60, 1,145,150.40 and 698,115.20 is: 1,047,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,433.60 : 1,145,150.40 = 698,115.20 : x
  2. Step 2: Convert to fraction form
    763,433.60/1,145,150.40 = 698,115.20/x
  3. Step 3: Cross multiply
    763,433.60x = 1,145,150.40 × 698,115.20
  4. Step 4: Simplify right side
    763,433.60x = 799,446,900,526.08
  5. Step 5: Solve for x
    x = 799,446,900,526.08/763,433.60
  6. Step 6: Final answer
    x = 1,047,172.80

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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.