Home / 851,401.68-1,174,987.26-469,427.88

Finding the Fourth Proportional to 851,401.68, 1,174,987.26 and 469,427.88

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Solution

The fourth proportional to 851,401.68, 1,174,987.26 and 469,427.88 is: 647,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,401.68 : 1,174,987.26 = 469,427.88 : x
  2. Step 2: Convert to fraction form
    851,401.68/1,174,987.26 = 469,427.88/x
  3. Step 3: Cross multiply
    851,401.68x = 1,174,987.26 × 469,427.88
  4. Step 4: Simplify right side
    851,401.68x = 551,571,778,488.81
  5. Step 5: Solve for x
    x = 551,571,778,488.81/851,401.68
  6. Step 6: Final answer
    x = 647,839.66

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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.