Home / 1,399,129.80-2,087,782.50-1,248,333.48

Finding the Fourth Proportional to 1,399,129.80, 2,087,782.50 and 1,248,333.48

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Solution

The fourth proportional to 1,399,129.80, 2,087,782.50 and 1,248,333.48 is: 1,862,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,129.80 : 2,087,782.50 = 1,248,333.48 : x
  2. Step 2: Convert to fraction form
    1,399,129.80/2,087,782.50 = 1,248,333.48/x
  3. Step 3: Cross multiply
    1,399,129.80x = 2,087,782.50 × 1,248,333.48
  4. Step 4: Simplify right side
    1,399,129.80x = 2,606,248,793,708.10
  5. Step 5: Solve for x
    x = 2,606,248,793,708.10/1,399,129.80
  6. Step 6: Final answer
    x = 1,862,764.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.