Home / 864,032.80-1,296,049.20-486,119.20

Finding the Fourth Proportional to 864,032.80, 1,296,049.20 and 486,119.20

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Solution

The fourth proportional to 864,032.80, 1,296,049.20 and 486,119.20 is: 729,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,032.80 : 1,296,049.20 = 486,119.20 : x
  2. Step 2: Convert to fraction form
    864,032.80/1,296,049.20 = 486,119.20/x
  3. Step 3: Cross multiply
    864,032.80x = 1,296,049.20 × 486,119.20
  4. Step 4: Simplify right side
    864,032.80x = 630,034,400,264.64
  5. Step 5: Solve for x
    x = 630,034,400,264.64/864,032.80
  6. Step 6: Final answer
    x = 729,178.80

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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.