Home / 991,723.60-1,488,751.80-984,725.20

Finding the Fourth Proportional to 991,723.60, 1,488,751.80 and 984,725.20

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Solution

The fourth proportional to 991,723.60, 1,488,751.80 and 984,725.20 is: 1,478,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,723.60 : 1,488,751.80 = 984,725.20 : x
  2. Step 2: Convert to fraction form
    991,723.60/1,488,751.80 = 984,725.20/x
  3. Step 3: Cross multiply
    991,723.60x = 1,488,751.80 × 984,725.20
  4. Step 4: Simplify right side
    991,723.60x = 1,466,011,414,005.36
  5. Step 5: Solve for x
    x = 1,466,011,414,005.36/991,723.60
  6. Step 6: Final answer
    x = 1,478,245.97

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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.