Home / 589,311.20-884,031.60-215,415.20

Finding the Fourth Proportional to 589,311.20, 884,031.60 and 215,415.20

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Solution

The fourth proportional to 589,311.20, 884,031.60 and 215,415.20 is: 323,146.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,311.20 : 884,031.60 = 215,415.20 : x
  2. Step 2: Convert to fraction form
    589,311.20/884,031.60 = 215,415.20/x
  3. Step 3: Cross multiply
    589,311.20x = 884,031.60 × 215,415.20
  4. Step 4: Simplify right side
    589,311.20x = 190,433,843,920.32
  5. Step 5: Solve for x
    x = 190,433,843,920.32/589,311.20
  6. Step 6: Final answer
    x = 323,146.49

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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.