Home / 1,290,717-1,781,233.08-709,964.88

Finding the Fourth Proportional to 1,290,717, 1,781,233.08 and 709,964.88

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Solution

The fourth proportional to 1,290,717, 1,781,233.08 and 709,964.88 is: 979,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,717 : 1,781,233.08 = 709,964.88 : x
  2. Step 2: Convert to fraction form
    1,290,717/1,781,233.08 = 709,964.88/x
  3. Step 3: Cross multiply
    1,290,717x = 1,781,233.08 × 709,964.88
  4. Step 4: Simplify right side
    1,290,717x = 1,264,612,929,894.23
  5. Step 5: Solve for x
    x = 1,264,612,929,894.23/1,290,717
  6. Step 6: Final answer
    x = 979,775.53

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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.