Home / 644,320.80-966,481.20-540,122.40

Finding the Fourth Proportional to 644,320.80, 966,481.20 and 540,122.40

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Solution

The fourth proportional to 644,320.80, 966,481.20 and 540,122.40 is: 810,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,320.80 : 966,481.20 = 540,122.40 : x
  2. Step 2: Convert to fraction form
    644,320.80/966,481.20 = 540,122.40/x
  3. Step 3: Cross multiply
    644,320.80x = 966,481.20 × 540,122.40
  4. Step 4: Simplify right side
    644,320.80x = 522,018,145,298.88
  5. Step 5: Solve for x
    x = 522,018,145,298.88/644,320.80
  6. Step 6: Final answer
    x = 810,183.60

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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.