Home / 1,079,938.74-1,620,001.13-281,221.74

Finding the Fourth Proportional to 1,079,938.74, 1,620,001.13 and 281,221.74

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Solution

The fourth proportional to 1,079,938.74, 1,620,001.13 and 281,221.74 is: 421,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,938.74 : 1,620,001.13 = 281,221.74 : x
  2. Step 2: Convert to fraction form
    1,079,938.74/1,620,001.13 = 281,221.74/x
  3. Step 3: Cross multiply
    1,079,938.74x = 1,620,001.13 × 281,221.74
  4. Step 4: Simplify right side
    1,079,938.74x = 455,579,528,480.56
  5. Step 5: Solve for x
    x = 455,579,528,480.56/1,079,938.74
  6. Step 6: Final answer
    x = 421,856.83

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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.