Home / 828,980.40-1,243,470.60-814,983.60

Finding the Fourth Proportional to 828,980.40, 1,243,470.60 and 814,983.60

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Solution

The fourth proportional to 828,980.40, 1,243,470.60 and 814,983.60 is: 1,222,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,980.40 : 1,243,470.60 = 814,983.60 : x
  2. Step 2: Convert to fraction form
    828,980.40/1,243,470.60 = 814,983.60/x
  3. Step 3: Cross multiply
    828,980.40x = 1,243,470.60 × 814,983.60
  4. Step 4: Simplify right side
    828,980.40x = 1,013,408,146,082.16
  5. Step 5: Solve for x
    x = 1,013,408,146,082.16/828,980.40
  6. Step 6: Final answer
    x = 1,222,475.40

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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.