Home / 535,411.02-738,743.31-320,469.42

Finding the Fourth Proportional to 535,411.02, 738,743.31 and 320,469.42

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Solution

The fourth proportional to 535,411.02, 738,743.31 and 320,469.42 is: 442,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,411.02 : 738,743.31 = 320,469.42 : x
  2. Step 2: Convert to fraction form
    535,411.02/738,743.31 = 320,469.42/x
  3. Step 3: Cross multiply
    535,411.02x = 738,743.31 × 320,469.42
  4. Step 4: Simplify right side
    535,411.02x = 236,744,640,084.58
  5. Step 5: Solve for x
    x = 236,744,640,084.58/535,411.02
  6. Step 6: Final answer
    x = 442,173.64

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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.