Home / 871,738.20-1,307,643.48-272,710.80

Finding the Fourth Proportional to 871,738.20, 1,307,643.48 and 272,710.80

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Solution

The fourth proportional to 871,738.20, 1,307,643.48 and 272,710.80 is: 409,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,738.20 : 1,307,643.48 = 272,710.80 : x
  2. Step 2: Convert to fraction form
    871,738.20/1,307,643.48 = 272,710.80/x
  3. Step 3: Cross multiply
    871,738.20x = 1,307,643.48 × 272,710.80
  4. Step 4: Simplify right side
    871,738.20x = 356,608,499,545.58
  5. Step 5: Solve for x
    x = 356,608,499,545.58/871,738.20
  6. Step 6: Final answer
    x = 409,077.52

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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.