Home / 765,104.22-1,055,826.77-442,807.85

Finding the Fourth Proportional to 765,104.22, 1,055,826.77 and 442,807.85

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Solution

The fourth proportional to 765,104.22, 1,055,826.77 and 442,807.85 is: 611,064.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,104.22 : 1,055,826.77 = 442,807.85 : x
  2. Step 2: Convert to fraction form
    765,104.22/1,055,826.77 = 442,807.85/x
  3. Step 3: Cross multiply
    765,104.22x = 1,055,826.77 × 442,807.85
  4. Step 4: Simplify right side
    765,104.22x = 467,528,382,421.67
  5. Step 5: Solve for x
    x = 467,528,382,421.67/765,104.22
  6. Step 6: Final answer
    x = 611,064.96

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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.