Home / 554,401.20-831,601.80-288,680.70

Finding the Fourth Proportional to 554,401.20, 831,601.80 and 288,680.70

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Solution

The fourth proportional to 554,401.20, 831,601.80 and 288,680.70 is: 433,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,401.20 : 831,601.80 = 288,680.70 : x
  2. Step 2: Convert to fraction form
    554,401.20/831,601.80 = 288,680.70/x
  3. Step 3: Cross multiply
    554,401.20x = 831,601.80 × 288,680.70
  4. Step 4: Simplify right side
    554,401.20x = 240,067,389,745.26
  5. Step 5: Solve for x
    x = 240,067,389,745.26/554,401.20
  6. Step 6: Final answer
    x = 433,021.05

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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.