Home / 800,001.55-1,200,003.54-326,686.96

Finding the Fourth Proportional to 800,001.55, 1,200,003.54 and 326,686.96

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Solution

The fourth proportional to 800,001.55, 1,200,003.54 and 326,686.96 is: 490,030.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,001.55 : 1,200,003.54 = 326,686.96 : x
  2. Step 2: Convert to fraction form
    800,001.55/1,200,003.54 = 326,686.96/x
  3. Step 3: Cross multiply
    800,001.55x = 1,200,003.54 × 326,686.96
  4. Step 4: Simplify right side
    800,001.55x = 392,025,508,471.84
  5. Step 5: Solve for x
    x = 392,025,508,471.84/800,001.55
  6. Step 6: Final answer
    x = 490,030.94

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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.