Home / 1,291,003.92-1,781,460.60-747,031.20

Finding the Fourth Proportional to 1,291,003.92, 1,781,460.60 and 747,031.20

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Solution

The fourth proportional to 1,291,003.92, 1,781,460.60 and 747,031.20 is: 1,030,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,003.92 : 1,781,460.60 = 747,031.20 : x
  2. Step 2: Convert to fraction form
    1,291,003.92/1,781,460.60 = 747,031.20/x
  3. Step 3: Cross multiply
    1,291,003.92x = 1,781,460.60 × 747,031.20
  4. Step 4: Simplify right side
    1,291,003.92x = 1,330,806,649,770.72
  5. Step 5: Solve for x
    x = 1,330,806,649,770.72/1,291,003.92
  6. Step 6: Final answer
    x = 1,030,830.84

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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.