Home / 1,331,088.66-1,837,789.02-787,399.11

Finding the Fourth Proportional to 1,331,088.66, 1,837,789.02 and 787,399.11

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Solution

The fourth proportional to 1,331,088.66, 1,837,789.02 and 787,399.11 is: 1,087,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,088.66 : 1,837,789.02 = 787,399.11 : x
  2. Step 2: Convert to fraction form
    1,331,088.66/1,837,789.02 = 787,399.11/x
  3. Step 3: Cross multiply
    1,331,088.66x = 1,837,789.02 × 787,399.11
  4. Step 4: Simplify right side
    1,331,088.66x = 1,447,073,438,715.77
  5. Step 5: Solve for x
    x = 1,447,073,438,715.77/1,331,088.66
  6. Step 6: Final answer
    x = 1,087,135.28

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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.