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Finding the Fourth Proportional to 611,066, 843,276.84 and 342,799.76

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Solution

The fourth proportional to 611,066, 843,276.84 and 342,799.76 is: 473,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,066 : 843,276.84 = 342,799.76 : x
  2. Step 2: Convert to fraction form
    611,066/843,276.84 = 342,799.76/x
  3. Step 3: Cross multiply
    611,066x = 843,276.84 × 342,799.76
  4. Step 4: Simplify right side
    611,066x = 289,075,098,365.56
  5. Step 5: Solve for x
    x = 289,075,098,365.56/611,066
  6. Step 6: Final answer
    x = 473,066.90

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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.