Home / 721,886.20-1,082,829.30-590,666.20

Finding the Fourth Proportional to 721,886.20, 1,082,829.30 and 590,666.20

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Solution

The fourth proportional to 721,886.20, 1,082,829.30 and 590,666.20 is: 885,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,886.20 : 1,082,829.30 = 590,666.20 : x
  2. Step 2: Convert to fraction form
    721,886.20/1,082,829.30 = 590,666.20/x
  3. Step 3: Cross multiply
    721,886.20x = 1,082,829.30 × 590,666.20
  4. Step 4: Simplify right side
    721,886.20x = 639,590,667,879.66
  5. Step 5: Solve for x
    x = 639,590,667,879.66/721,886.20
  6. Step 6: Final answer
    x = 885,999.30

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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.