Home / 731,026.22-1,008,507.28-489,386.64

Finding the Fourth Proportional to 731,026.22, 1,008,507.28 and 489,386.64

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Solution

The fourth proportional to 731,026.22, 1,008,507.28 and 489,386.64 is: 675,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,026.22 : 1,008,507.28 = 489,386.64 : x
  2. Step 2: Convert to fraction form
    731,026.22/1,008,507.28 = 489,386.64/x
  3. Step 3: Cross multiply
    731,026.22x = 1,008,507.28 × 489,386.64
  4. Step 4: Simplify right side
    731,026.22x = 493,549,988,802.97
  5. Step 5: Solve for x
    x = 493,549,988,802.97/731,026.22
  6. Step 6: Final answer
    x = 675,146.77

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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.