Home / 721,501.86-1,082,221.74-189,011.10

Finding the Fourth Proportional to 721,501.86, 1,082,221.74 and 189,011.10

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Solution

The fourth proportional to 721,501.86, 1,082,221.74 and 189,011.10 is: 283,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,501.86 : 1,082,221.74 = 189,011.10 : x
  2. Step 2: Convert to fraction form
    721,501.86/1,082,221.74 = 189,011.10/x
  3. Step 3: Cross multiply
    721,501.86x = 1,082,221.74 × 189,011.10
  4. Step 4: Simplify right side
    721,501.86x = 204,551,921,521.31
  5. Step 5: Solve for x
    x = 204,551,921,521.31/721,501.86
  6. Step 6: Final answer
    x = 283,508.52

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Double scale
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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.