Home / 753,629.40-1,130,444.10-280,216.80

Finding the Fourth Proportional to 753,629.40, 1,130,444.10 and 280,216.80

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Solution

The fourth proportional to 753,629.40, 1,130,444.10 and 280,216.80 is: 420,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,629.40 : 1,130,444.10 = 280,216.80 : x
  2. Step 2: Convert to fraction form
    753,629.40/1,130,444.10 = 280,216.80/x
  3. Step 3: Cross multiply
    753,629.40x = 1,130,444.10 × 280,216.80
  4. Step 4: Simplify right side
    753,629.40x = 316,769,428,280.88
  5. Step 5: Solve for x
    x = 316,769,428,280.88/753,629.40
  6. Step 6: Final answer
    x = 420,325.20

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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.