Home / 1,138,687.12-1,571,544.48-655,242.40

Finding the Fourth Proportional to 1,138,687.12, 1,571,544.48 and 655,242.40

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Solution

The fourth proportional to 1,138,687.12, 1,571,544.48 and 655,242.40 is: 904,324.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,687.12 : 1,571,544.48 = 655,242.40 : x
  2. Step 2: Convert to fraction form
    1,138,687.12/1,571,544.48 = 655,242.40/x
  3. Step 3: Cross multiply
    1,138,687.12x = 1,571,544.48 × 655,242.40
  4. Step 4: Simplify right side
    1,138,687.12x = 1,029,742,576,781.95
  5. Step 5: Solve for x
    x = 1,029,742,576,781.95/1,138,687.12
  6. Step 6: Final answer
    x = 904,324.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.