Home / 774,680.80-1,162,021.20-213,714.40

Finding the Fourth Proportional to 774,680.80, 1,162,021.20 and 213,714.40

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Solution

The fourth proportional to 774,680.80, 1,162,021.20 and 213,714.40 is: 320,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,680.80 : 1,162,021.20 = 213,714.40 : x
  2. Step 2: Convert to fraction form
    774,680.80/1,162,021.20 = 213,714.40/x
  3. Step 3: Cross multiply
    774,680.80x = 1,162,021.20 × 213,714.40
  4. Step 4: Simplify right side
    774,680.80x = 248,340,663,545.28
  5. Step 5: Solve for x
    x = 248,340,663,545.28/774,680.80
  6. Step 6: Final answer
    x = 320,571.60

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Similar ratio
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1.5x scale

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.