Home / 1,374,989.40-1,897,478.76-763,149.48

Finding the Fourth Proportional to 1,374,989.40, 1,897,478.76 and 763,149.48

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Solution

The fourth proportional to 1,374,989.40, 1,897,478.76 and 763,149.48 is: 1,053,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,989.40 : 1,897,478.76 = 763,149.48 : x
  2. Step 2: Convert to fraction form
    1,374,989.40/1,897,478.76 = 763,149.48/x
  3. Step 3: Cross multiply
    1,374,989.40x = 1,897,478.76 × 763,149.48
  4. Step 4: Simplify right side
    1,374,989.40x = 1,448,059,929,005.04
  5. Step 5: Solve for x
    x = 1,448,059,929,005.04/1,374,989.40
  6. Step 6: Final answer
    x = 1,053,142.61

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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.