Home / 862,641.20-1,190,481.28-480,667.88

Finding the Fourth Proportional to 862,641.20, 1,190,481.28 and 480,667.88

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Solution

The fourth proportional to 862,641.20, 1,190,481.28 and 480,667.88 is: 663,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,641.20 : 1,190,481.28 = 480,667.88 : x
  2. Step 2: Convert to fraction form
    862,641.20/1,190,481.28 = 480,667.88/x
  3. Step 3: Cross multiply
    862,641.20x = 1,190,481.28 × 480,667.88
  4. Step 4: Simplify right side
    862,641.20x = 572,226,105,883.21
  5. Step 5: Solve for x
    x = 572,226,105,883.21/862,641.20
  6. Step 6: Final answer
    x = 663,341.97

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.