Home / 803,422.80-1,205,134.20-716,331.60

Finding the Fourth Proportional to 803,422.80, 1,205,134.20 and 716,331.60

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Solution

The fourth proportional to 803,422.80, 1,205,134.20 and 716,331.60 is: 1,074,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,422.80 : 1,205,134.20 = 716,331.60 : x
  2. Step 2: Convert to fraction form
    803,422.80/1,205,134.20 = 716,331.60/x
  3. Step 3: Cross multiply
    803,422.80x = 1,205,134.20 × 716,331.60
  4. Step 4: Simplify right side
    803,422.80x = 863,275,709,700.72
  5. Step 5: Solve for x
    x = 863,275,709,700.72/803,422.80
  6. Step 6: Final answer
    x = 1,074,497.40

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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.