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Finding the Fourth Proportional to 611,040, 843,240.96 and 342,773.76

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Solution

The fourth proportional to 611,040, 843,240.96 and 342,773.76 is: 473,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,040 : 843,240.96 = 342,773.76 : x
  2. Step 2: Convert to fraction form
    611,040/843,240.96 = 342,773.76/x
  3. Step 3: Cross multiply
    611,040x = 843,240.96 × 342,773.76
  4. Step 4: Simplify right side
    611,040x = 289,040,874,445.21
  5. Step 5: Solve for x
    x = 289,040,874,445.21/611,040
  6. Step 6: Final answer
    x = 473,031.02

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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.