Home / 648,195.20-972,286.40-204,963.20

Finding the Fourth Proportional to 648,195.20, 972,286.40 and 204,963.20

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Solution

The fourth proportional to 648,195.20, 972,286.40 and 204,963.20 is: 307,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,195.20 : 972,286.40 = 204,963.20 : x
  2. Step 2: Convert to fraction form
    648,195.20/972,286.40 = 204,963.20/x
  3. Step 3: Cross multiply
    648,195.20x = 972,286.40 × 204,963.20
  4. Step 4: Simplify right side
    648,195.20x = 199,282,931,860.48
  5. Step 5: Solve for x
    x = 199,282,931,860.48/648,195.20
  6. Step 6: Final answer
    x = 307,442.78

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1.5x scale

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.