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Finding the Fourth Proportional to 574,401.42, 792,687.87 and 319,769.82

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Solution

The fourth proportional to 574,401.42, 792,687.87 and 319,769.82 is: 441,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,401.42 : 792,687.87 = 319,769.82 : x
  2. Step 2: Convert to fraction form
    574,401.42/792,687.87 = 319,769.82/x
  3. Step 3: Cross multiply
    574,401.42x = 792,687.87 × 319,769.82
  4. Step 4: Simplify right side
    574,401.42x = 253,477,657,506.08
  5. Step 5: Solve for x
    x = 253,477,657,506.08/574,401.42
  6. Step 6: Final answer
    x = 441,290.10

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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.