Home / 820,823.04-1,231,364.16-315,363.84

Finding the Fourth Proportional to 820,823.04, 1,231,364.16 and 315,363.84

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Solution

The fourth proportional to 820,823.04, 1,231,364.16 and 315,363.84 is: 473,095.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,823.04 : 1,231,364.16 = 315,363.84 : x
  2. Step 2: Convert to fraction form
    820,823.04/1,231,364.16 = 315,363.84/x
  3. Step 3: Cross multiply
    820,823.04x = 1,231,364.16 × 315,363.84
  4. Step 4: Simplify right side
    820,823.04x = 388,327,729,935.97
  5. Step 5: Solve for x
    x = 388,327,729,935.97/820,823.04
  6. Step 6: Final answer
    x = 473,095.55

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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.