Home / 1,290,623.26-1,781,103.25-709,870.88

Finding the Fourth Proportional to 1,290,623.26, 1,781,103.25 and 709,870.88

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Solution

The fourth proportional to 1,290,623.26, 1,781,103.25 and 709,870.88 is: 979,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,623.26 : 1,781,103.25 = 709,870.88 : x
  2. Step 2: Convert to fraction form
    1,290,623.26/1,781,103.25 = 709,870.88/x
  3. Step 3: Cross multiply
    1,290,623.26x = 1,781,103.25 × 709,870.88
  4. Step 4: Simplify right side
    1,290,623.26x = 1,264,353,330,109.32
  5. Step 5: Solve for x
    x = 1,264,353,330,109.32/1,290,623.26
  6. Step 6: Final answer
    x = 979,645.55

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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.