Home / 745,272.65-1,028,481.17-422,988.13

Finding the Fourth Proportional to 745,272.65, 1,028,481.17 and 422,988.13

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Solution

The fourth proportional to 745,272.65, 1,028,481.17 and 422,988.13 is: 583,726.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,272.65 : 1,028,481.17 = 422,988.13 : x
  2. Step 2: Convert to fraction form
    745,272.65/1,028,481.17 = 422,988.13/x
  3. Step 3: Cross multiply
    745,272.65x = 1,028,481.17 × 422,988.13
  4. Step 4: Simplify right side
    745,272.65x = 435,035,323,792.93
  5. Step 5: Solve for x
    x = 435,035,323,792.93/745,272.65
  6. Step 6: Final answer
    x = 583,726.41

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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.