Home / 656,962.20-985,443.30-213,730.20

Finding the Fourth Proportional to 656,962.20, 985,443.30 and 213,730.20

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Solution

The fourth proportional to 656,962.20, 985,443.30 and 213,730.20 is: 320,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,962.20 : 985,443.30 = 213,730.20 : x
  2. Step 2: Convert to fraction form
    656,962.20/985,443.30 = 213,730.20/x
  3. Step 3: Cross multiply
    656,962.20x = 985,443.30 × 213,730.20
  4. Step 4: Simplify right side
    656,962.20x = 210,618,993,597.66
  5. Step 5: Solve for x
    x = 210,618,993,597.66/656,962.20
  6. Step 6: Final answer
    x = 320,595.30

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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.