Home / 1,013,428.46-1,520,142.69-823,659.74

Finding the Fourth Proportional to 1,013,428.46, 1,520,142.69 and 823,659.74

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Solution

The fourth proportional to 1,013,428.46, 1,520,142.69 and 823,659.74 is: 1,235,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,428.46 : 1,520,142.69 = 823,659.74 : x
  2. Step 2: Convert to fraction form
    1,013,428.46/1,520,142.69 = 823,659.74/x
  3. Step 3: Cross multiply
    1,013,428.46x = 1,520,142.69 × 823,659.74
  4. Step 4: Simplify right side
    1,013,428.46x = 1,252,080,333,996.85
  5. Step 5: Solve for x
    x = 1,252,080,333,996.85/1,013,428.46
  6. Step 6: Final answer
    x = 1,235,489.61

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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.