Home / 820,456.41-1,132,343.98-457,903.63

Finding the Fourth Proportional to 820,456.41, 1,132,343.98 and 457,903.63

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Solution

The fourth proportional to 820,456.41, 1,132,343.98 and 457,903.63 is: 631,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,456.41 : 1,132,343.98 = 457,903.63 : x
  2. Step 2: Convert to fraction form
    820,456.41/1,132,343.98 = 457,903.63/x
  3. Step 3: Cross multiply
    820,456.41x = 1,132,343.98 × 457,903.63
  4. Step 4: Simplify right side
    820,456.41x = 518,504,419,121.32
  5. Step 5: Solve for x
    x = 518,504,419,121.32/820,456.41
  6. Step 6: Final answer
    x = 631,970.71

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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.