Home / 890,667.20-1,336,000.80-216,743.15

Finding the Fourth Proportional to 890,667.20, 1,336,000.80 and 216,743.15

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Solution

The fourth proportional to 890,667.20, 1,336,000.80 and 216,743.15 is: 325,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,667.20 : 1,336,000.80 = 216,743.15 : x
  2. Step 2: Convert to fraction form
    890,667.20/1,336,000.80 = 216,743.15/x
  3. Step 3: Cross multiply
    890,667.20x = 1,336,000.80 × 216,743.15
  4. Step 4: Simplify right side
    890,667.20x = 289,569,021,794.52
  5. Step 5: Solve for x
    x = 289,569,021,794.52/890,667.20
  6. Step 6: Final answer
    x = 325,114.73

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Half scale
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Double scale
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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.