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Finding the Fourth Proportional to 580,401.10, 870,601.65 and 159,676.30

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Solution

The fourth proportional to 580,401.10, 870,601.65 and 159,676.30 is: 239,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,401.10 : 870,601.65 = 159,676.30 : x
  2. Step 2: Convert to fraction form
    580,401.10/870,601.65 = 159,676.30/x
  3. Step 3: Cross multiply
    580,401.10x = 870,601.65 × 159,676.30
  4. Step 4: Simplify right side
    580,401.10x = 139,014,450,245.90
  5. Step 5: Solve for x
    x = 139,014,450,245.90/580,401.10
  6. Step 6: Final answer
    x = 239,514.45

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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.