Home / 871,000.09-1,306,499.52-272,012.58

Finding the Fourth Proportional to 871,000.09, 1,306,499.52 and 272,012.58

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Solution

The fourth proportional to 871,000.09, 1,306,499.52 and 272,012.58 is: 408,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,000.09 : 1,306,499.52 = 272,012.58 : x
  2. Step 2: Convert to fraction form
    871,000.09/1,306,499.52 = 272,012.58/x
  3. Step 3: Cross multiply
    871,000.09x = 1,306,499.52 × 272,012.58
  4. Step 4: Simplify right side
    871,000.09x = 355,384,306,224.01
  5. Step 5: Solve for x
    x = 355,384,306,224.01/871,000.09
  6. Step 6: Final answer
    x = 408,018.68

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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.