Home / 871,001.42-1,306,501.50-272,013.90

Finding the Fourth Proportional to 871,001.42, 1,306,501.50 and 272,013.90

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Solution

The fourth proportional to 871,001.42, 1,306,501.50 and 272,013.90 is: 408,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,001.42 : 1,306,501.50 = 272,013.90 : x
  2. Step 2: Convert to fraction form
    871,001.42/1,306,501.50 = 272,013.90/x
  3. Step 3: Cross multiply
    871,001.42x = 1,306,501.50 × 272,013.90
  4. Step 4: Simplify right side
    871,001.42x = 355,386,568,370.85
  5. Step 5: Solve for x
    x = 355,386,568,370.85/871,001.42
  6. Step 6: Final answer
    x = 408,020.65

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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.