Home / 1,338,715.70-2,005,121.10-706,891.40

Finding the Fourth Proportional to 1,338,715.70, 2,005,121.10 and 706,891.40

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Solution

The fourth proportional to 1,338,715.70, 2,005,121.10 and 706,891.40 is: 1,058,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,715.70 : 2,005,121.10 = 706,891.40 : x
  2. Step 2: Convert to fraction form
    1,338,715.70/2,005,121.10 = 706,891.40/x
  3. Step 3: Cross multiply
    1,338,715.70x = 2,005,121.10 × 706,891.40
  4. Step 4: Simplify right side
    1,338,715.70x = 1,417,402,861,548.54
  5. Step 5: Solve for x
    x = 1,417,402,861,548.54/1,338,715.70
  6. Step 6: Final answer
    x = 1,058,778.10

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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.