Home / 1,388,713.70-2,078,404.95-968,809.70

Finding the Fourth Proportional to 1,388,713.70, 2,078,404.95 and 968,809.70

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Solution

The fourth proportional to 1,388,713.70, 2,078,404.95 and 968,809.70 is: 1,449,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,713.70 : 2,078,404.95 = 968,809.70 : x
  2. Step 2: Convert to fraction form
    1,388,713.70/2,078,404.95 = 968,809.70/x
  3. Step 3: Cross multiply
    1,388,713.70x = 2,078,404.95 × 968,809.70
  4. Step 4: Simplify right side
    1,388,713.70x = 2,013,578,876,088.02
  5. Step 5: Solve for x
    x = 2,013,578,876,088.02/1,388,713.70
  6. Step 6: Final answer
    x = 1,449,959.68

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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.