Home / 763,510.40-1,145,395.20-231,027.20

Finding the Fourth Proportional to 763,510.40, 1,145,395.20 and 231,027.20

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Solution

The fourth proportional to 763,510.40, 1,145,395.20 and 231,027.20 is: 346,580.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,510.40 : 1,145,395.20 = 231,027.20 : x
  2. Step 2: Convert to fraction form
    763,510.40/1,145,395.20 = 231,027.20/x
  3. Step 3: Cross multiply
    763,510.40x = 1,145,395.20 × 231,027.20
  4. Step 4: Simplify right side
    763,510.40x = 264,617,445,949.44
  5. Step 5: Solve for x
    x = 264,617,445,949.44/763,510.40
  6. Step 6: Final answer
    x = 346,580.02

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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.