Home / 1,016,285.64-1,398,953.40-878,401.38

Finding the Fourth Proportional to 1,016,285.64, 1,398,953.40 and 878,401.38

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Solution

The fourth proportional to 1,016,285.64, 1,398,953.40 and 878,401.38 is: 1,209,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,285.64 : 1,398,953.40 = 878,401.38 : x
  2. Step 2: Convert to fraction form
    1,016,285.64/1,398,953.40 = 878,401.38/x
  3. Step 3: Cross multiply
    1,016,285.64x = 1,398,953.40 × 878,401.38
  4. Step 4: Simplify right side
    1,016,285.64x = 1,228,842,597,115.69
  5. Step 5: Solve for x
    x = 1,228,842,597,115.69/1,016,285.64
  6. Step 6: Final answer
    x = 1,209,150.80

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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.