Home / 991,707.20-1,487,560.80-571,803.20

Finding the Fourth Proportional to 991,707.20, 1,487,560.80 and 571,803.20

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Solution

The fourth proportional to 991,707.20, 1,487,560.80 and 571,803.20 is: 857,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,707.20 : 1,487,560.80 = 571,803.20 : x
  2. Step 2: Convert to fraction form
    991,707.20/1,487,560.80 = 571,803.20/x
  3. Step 3: Cross multiply
    991,707.20x = 1,487,560.80 × 571,803.20
  4. Step 4: Simplify right side
    991,707.20x = 850,592,025,634.56
  5. Step 5: Solve for x
    x = 850,592,025,634.56/991,707.20
  6. Step 6: Final answer
    x = 857,704.80

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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.