Home / 820,463.60-1,230,112.20-314,829.20

Finding the Fourth Proportional to 820,463.60, 1,230,112.20 and 314,829.20

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Solution

The fourth proportional to 820,463.60, 1,230,112.20 and 314,829.20 is: 472,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,463.60 : 1,230,112.20 = 314,829.20 : x
  2. Step 2: Convert to fraction form
    820,463.60/1,230,112.20 = 314,829.20/x
  3. Step 3: Cross multiply
    820,463.60x = 1,230,112.20 × 314,829.20
  4. Step 4: Simplify right side
    820,463.60x = 387,275,239,836.24
  5. Step 5: Solve for x
    x = 387,275,239,836.24/820,463.60
  6. Step 6: Final answer
    x = 472,020.01

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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.