Home / 1,189,877.52-1,785,525.47-431,778.13

Finding the Fourth Proportional to 1,189,877.52, 1,785,525.47 and 431,778.13

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Solution

The fourth proportional to 1,189,877.52, 1,785,525.47 and 431,778.13 is: 647,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,877.52 : 1,785,525.47 = 431,778.13 : x
  2. Step 2: Convert to fraction form
    1,189,877.52/1,785,525.47 = 431,778.13/x
  3. Step 3: Cross multiply
    1,189,877.52x = 1,785,525.47 × 431,778.13
  4. Step 4: Simplify right side
    1,189,877.52x = 770,950,845,421.55
  5. Step 5: Solve for x
    x = 770,950,845,421.55/1,189,877.52
  6. Step 6: Final answer
    x = 647,924.54

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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.