Home / 820,456.92-1,132,344.67-457,904.13

Finding the Fourth Proportional to 820,456.92, 1,132,344.67 and 457,904.13

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Solution

The fourth proportional to 820,456.92, 1,132,344.67 and 457,904.13 is: 631,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,456.92 : 1,132,344.67 = 457,904.13 : x
  2. Step 2: Convert to fraction form
    820,456.92/1,132,344.67 = 457,904.13/x
  3. Step 3: Cross multiply
    820,456.92x = 1,132,344.67 × 457,904.13
  4. Step 4: Simplify right side
    820,456.92x = 518,505,300,976.49
  5. Step 5: Solve for x
    x = 518,505,300,976.49/820,456.92
  6. Step 6: Final answer
    x = 631,971.39

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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.