Home / 535,143.74-738,469.98-305,655.95

Finding the Fourth Proportional to 535,143.74, 738,469.98 and 305,655.95

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Solution

The fourth proportional to 535,143.74, 738,469.98 and 305,655.95 is: 421,789.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,143.74 : 738,469.98 = 305,655.95 : x
  2. Step 2: Convert to fraction form
    535,143.74/738,469.98 = 305,655.95/x
  3. Step 3: Cross multiply
    535,143.74x = 738,469.98 × 305,655.95
  4. Step 4: Simplify right side
    535,143.74x = 225,717,745,129.56
  5. Step 5: Solve for x
    x = 225,717,745,129.56/535,143.74
  6. Step 6: Final answer
    x = 421,789.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.