Home / 558,010.20-837,015.30-380,863.20

Finding the Fourth Proportional to 558,010.20, 837,015.30 and 380,863.20

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Solution

The fourth proportional to 558,010.20, 837,015.30 and 380,863.20 is: 571,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,010.20 : 837,015.30 = 380,863.20 : x
  2. Step 2: Convert to fraction form
    558,010.20/837,015.30 = 380,863.20/x
  3. Step 3: Cross multiply
    558,010.20x = 837,015.30 × 380,863.20
  4. Step 4: Simplify right side
    558,010.20x = 318,788,325,606.96
  5. Step 5: Solve for x
    x = 318,788,325,606.96/558,010.20
  6. Step 6: Final answer
    x = 571,294.80

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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.