Home / 745,605.40-1,028,947.17-406,073.38

Finding the Fourth Proportional to 745,605.40, 1,028,947.17 and 406,073.38

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Solution

The fourth proportional to 745,605.40, 1,028,947.17 and 406,073.38 is: 560,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,605.40 : 1,028,947.17 = 406,073.38 : x
  2. Step 2: Convert to fraction form
    745,605.40/1,028,947.17 = 406,073.38/x
  3. Step 3: Cross multiply
    745,605.40x = 1,028,947.17 × 406,073.38
  4. Step 4: Simplify right side
    745,605.40x = 417,828,055,163.34
  5. Step 5: Solve for x
    x = 417,828,055,163.34/745,605.40
  6. Step 6: Final answer
    x = 560,387.65

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1.5x scale

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.