Home / 820,448.52-1,132,275.72-457,942.92

Finding the Fourth Proportional to 820,448.52, 1,132,275.72 and 457,942.92

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Solution

The fourth proportional to 820,448.52, 1,132,275.72 and 457,942.92 is: 631,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,448.52 : 1,132,275.72 = 457,942.92 : x
  2. Step 2: Convert to fraction form
    820,448.52/1,132,275.72 = 457,942.92/x
  3. Step 3: Cross multiply
    820,448.52x = 1,132,275.72 × 457,942.92
  4. Step 4: Simplify right side
    820,448.52x = 518,517,649,461.90
  5. Step 5: Solve for x
    x = 518,517,649,461.90/820,448.52
  6. Step 6: Final answer
    x = 631,992.91

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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.