Home / 820,425.66-1,132,244.28-457,920.16

Finding the Fourth Proportional to 820,425.66, 1,132,244.28 and 457,920.16

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Solution

The fourth proportional to 820,425.66, 1,132,244.28 and 457,920.16 is: 631,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,425.66 : 1,132,244.28 = 457,920.16 : x
  2. Step 2: Convert to fraction form
    820,425.66/1,132,244.28 = 457,920.16/x
  3. Step 3: Cross multiply
    820,425.66x = 1,132,244.28 × 457,920.16
  4. Step 4: Simplify right side
    820,425.66x = 518,477,481,856.69
  5. Step 5: Solve for x
    x = 518,477,481,856.69/820,425.66
  6. Step 6: Final answer
    x = 631,961.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.