Home / 855,034.80-1,281,750.30-322,913.40

Finding the Fourth Proportional to 855,034.80, 1,281,750.30 and 322,913.40

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Solution

The fourth proportional to 855,034.80, 1,281,750.30 and 322,913.40 is: 484,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,034.80 : 1,281,750.30 = 322,913.40 : x
  2. Step 2: Convert to fraction form
    855,034.80/1,281,750.30 = 322,913.40/x
  3. Step 3: Cross multiply
    855,034.80x = 1,281,750.30 × 322,913.40
  4. Step 4: Simplify right side
    855,034.80x = 413,894,347,324.02
  5. Step 5: Solve for x
    x = 413,894,347,324.02/855,034.80
  6. Step 6: Final answer
    x = 484,067.25

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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.