Home / 1,291,189.44-1,781,770.68-710,401.56

Finding the Fourth Proportional to 1,291,189.44, 1,781,770.68 and 710,401.56

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Solution

The fourth proportional to 1,291,189.44, 1,781,770.68 and 710,401.56 is: 980,315.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,189.44 : 1,781,770.68 = 710,401.56 : x
  2. Step 2: Convert to fraction form
    1,291,189.44/1,781,770.68 = 710,401.56/x
  3. Step 3: Cross multiply
    1,291,189.44x = 1,781,770.68 × 710,401.56
  4. Step 4: Simplify right side
    1,291,189.44x = 1,265,772,670,634.26
  5. Step 5: Solve for x
    x = 1,265,772,670,634.26/1,291,189.44
  6. Step 6: Final answer
    x = 980,315.23

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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.