Home / 535,440.39-738,931.05-320,539.02

Finding the Fourth Proportional to 535,440.39, 738,931.05 and 320,539.02

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Solution

The fourth proportional to 535,440.39, 738,931.05 and 320,539.02 is: 442,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,440.39 : 738,931.05 = 320,539.02 : x
  2. Step 2: Convert to fraction form
    535,440.39/738,931.05 = 320,539.02/x
  3. Step 3: Cross multiply
    535,440.39x = 738,931.05 × 320,539.02
  4. Step 4: Simplify right side
    535,440.39x = 236,856,234,614.57
  5. Step 5: Solve for x
    x = 236,856,234,614.57/535,440.39
  6. Step 6: Final answer
    x = 442,357.80

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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.