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Finding the Fourth Proportional to 613,908.63, 847,081.49 and 341,969.76

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Solution

The fourth proportional to 613,908.63, 847,081.49 and 341,969.76 is: 471,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,908.63 : 847,081.49 = 341,969.76 : x
  2. Step 2: Convert to fraction form
    613,908.63/847,081.49 = 341,969.76/x
  3. Step 3: Cross multiply
    613,908.63x = 847,081.49 × 341,969.76
  4. Step 4: Simplify right side
    613,908.63x = 289,676,252,125.89
  5. Step 5: Solve for x
    x = 289,676,252,125.89/613,908.63
  6. Step 6: Final answer
    x = 471,855.64

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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.