Home / 1,207,865.90-1,812,027.45-398,296.82

Finding the Fourth Proportional to 1,207,865.90, 1,812,027.45 and 398,296.82

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Solution

The fourth proportional to 1,207,865.90, 1,812,027.45 and 398,296.82 is: 597,520.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,865.90 : 1,812,027.45 = 398,296.82 : x
  2. Step 2: Convert to fraction form
    1,207,865.90/1,812,027.45 = 398,296.82/x
  3. Step 3: Cross multiply
    1,207,865.90x = 1,812,027.45 × 398,296.82
  4. Step 4: Simplify right side
    1,207,865.90x = 721,724,771,087.71
  5. Step 5: Solve for x
    x = 721,724,771,087.71/1,207,865.90
  6. Step 6: Final answer
    x = 597,520.61

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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.