Home / 1,087,143.12-1,500,015.92-657,414.02

Finding the Fourth Proportional to 1,087,143.12, 1,500,015.92 and 657,414.02

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Solution

The fourth proportional to 1,087,143.12, 1,500,015.92 and 657,414.02 is: 907,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,143.12 : 1,500,015.92 = 657,414.02 : x
  2. Step 2: Convert to fraction form
    1,087,143.12/1,500,015.92 = 657,414.02/x
  3. Step 3: Cross multiply
    1,087,143.12x = 1,500,015.92 × 657,414.02
  4. Step 4: Simplify right side
    1,087,143.12x = 986,131,496,494.17
  5. Step 5: Solve for x
    x = 986,131,496,494.17/1,087,143.12
  6. Step 6: Final answer
    x = 907,085.26

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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.