Home / 745,622.97-1,028,959.64-406,091.22

Finding the Fourth Proportional to 745,622.97, 1,028,959.64 and 406,091.22

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Solution

The fourth proportional to 745,622.97, 1,028,959.64 and 406,091.22 is: 560,405.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,622.97 : 1,028,959.64 = 406,091.22 : x
  2. Step 2: Convert to fraction form
    745,622.97/1,028,959.64 = 406,091.22/x
  3. Step 3: Cross multiply
    745,622.97x = 1,028,959.64 × 406,091.22
  4. Step 4: Simplify right side
    745,622.97x = 417,851,468,363.11
  5. Step 5: Solve for x
    x = 417,851,468,363.11/745,622.97
  6. Step 6: Final answer
    x = 560,405.85

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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.