Home / 770,215.74-1,155,597.33-343,712.77

Finding the Fourth Proportional to 770,215.74, 1,155,597.33 and 343,712.77

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Solution

The fourth proportional to 770,215.74, 1,155,597.33 and 343,712.77 is: 515,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,215.74 : 1,155,597.33 = 343,712.77 : x
  2. Step 2: Convert to fraction form
    770,215.74/1,155,597.33 = 343,712.77/x
  3. Step 3: Cross multiply
    770,215.74x = 1,155,597.33 × 343,712.77
  4. Step 4: Simplify right side
    770,215.74x = 397,193,557,698.83
  5. Step 5: Solve for x
    x = 397,193,557,698.83/770,215.74
  6. Step 6: Final answer
    x = 515,691.30

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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.