Home / 748,287.31-1,122,139.78-242,726.03

Finding the Fourth Proportional to 748,287.31, 1,122,139.78 and 242,726.03

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Solution

The fourth proportional to 748,287.31, 1,122,139.78 and 242,726.03 is: 363,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,287.31 : 1,122,139.78 = 242,726.03 : x
  2. Step 2: Convert to fraction form
    748,287.31/1,122,139.78 = 242,726.03/x
  3. Step 3: Cross multiply
    748,287.31x = 1,122,139.78 × 242,726.03
  4. Step 4: Simplify right side
    748,287.31x = 272,372,538,207.02
  5. Step 5: Solve for x
    x = 272,372,538,207.02/748,287.31
  6. Step 6: Final answer
    x = 363,994.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.