Home / 1,229,486.40-1,842,261.30-779,401.80

Finding the Fourth Proportional to 1,229,486.40, 1,842,261.30 and 779,401.80

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Solution

The fourth proportional to 1,229,486.40, 1,842,261.30 and 779,401.80 is: 1,167,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,486.40 : 1,842,261.30 = 779,401.80 : x
  2. Step 2: Convert to fraction form
    1,229,486.40/1,842,261.30 = 779,401.80/x
  3. Step 3: Cross multiply
    1,229,486.40x = 1,842,261.30 × 779,401.80
  4. Step 4: Simplify right side
    1,229,486.40x = 1,435,861,773,290.34
  5. Step 5: Solve for x
    x = 1,435,861,773,290.34/1,229,486.40
  6. Step 6: Final answer
    x = 1,167,854.95

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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.