Home / 830,078.20-1,245,117.30-755,282.80

Finding the Fourth Proportional to 830,078.20, 1,245,117.30 and 755,282.80

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Solution

The fourth proportional to 830,078.20, 1,245,117.30 and 755,282.80 is: 1,132,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,078.20 : 1,245,117.30 = 755,282.80 : x
  2. Step 2: Convert to fraction form
    830,078.20/1,245,117.30 = 755,282.80/x
  3. Step 3: Cross multiply
    830,078.20x = 1,245,117.30 × 755,282.80
  4. Step 4: Simplify right side
    830,078.20x = 940,415,680,672.44
  5. Step 5: Solve for x
    x = 940,415,680,672.44/830,078.20
  6. Step 6: Final answer
    x = 1,132,924.20

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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.