Home / 1,187,790.24-1,781,785.20-389,054.88

Finding the Fourth Proportional to 1,187,790.24, 1,781,785.20 and 389,054.88

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Solution

The fourth proportional to 1,187,790.24, 1,781,785.20 and 389,054.88 is: 583,615.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,790.24 : 1,781,785.20 = 389,054.88 : x
  2. Step 2: Convert to fraction form
    1,187,790.24/1,781,785.20 = 389,054.88/x
  3. Step 3: Cross multiply
    1,187,790.24x = 1,781,785.20 × 389,054.88
  4. Step 4: Simplify right side
    1,187,790.24x = 693,212,227,171.78
  5. Step 5: Solve for x
    x = 693,212,227,171.78/1,187,790.24
  6. Step 6: Final answer
    x = 583,615.02

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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.