Home / 753,422.72-1,130,009.88-247,990.28

Finding the Fourth Proportional to 753,422.72, 1,130,009.88 and 247,990.28

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Solution

The fourth proportional to 753,422.72, 1,130,009.88 and 247,990.28 is: 371,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,422.72 : 1,130,009.88 = 247,990.28 : x
  2. Step 2: Convert to fraction form
    753,422.72/1,130,009.88 = 247,990.28/x
  3. Step 3: Cross multiply
    753,422.72x = 1,130,009.88 × 247,990.28
  4. Step 4: Simplify right side
    753,422.72x = 280,231,466,543.97
  5. Step 5: Solve for x
    x = 280,231,466,543.97/753,422.72
  6. Step 6: Final answer
    x = 371,944.54

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1.5x scale

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.