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Finding the Fourth Proportional to 611,352, 843,743.52 and 343,080

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Solution

The fourth proportional to 611,352, 843,743.52 and 343,080 is: 473,494.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,352 : 843,743.52 = 343,080 : x
  2. Step 2: Convert to fraction form
    611,352/843,743.52 = 343,080/x
  3. Step 3: Cross multiply
    611,352x = 843,743.52 × 343,080
  4. Step 4: Simplify right side
    611,352x = 289,471,526,841.60
  5. Step 5: Solve for x
    x = 289,471,526,841.60/611,352
  6. Step 6: Final answer
    x = 473,494.04

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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.