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Finding the Fourth Proportional to 479,569.29, 661,805.69 and 264,709.40

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Solution

The fourth proportional to 479,569.29, 661,805.69 and 264,709.40 is: 365,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,569.29 : 661,805.69 = 264,709.40 : x
  2. Step 2: Convert to fraction form
    479,569.29/661,805.69 = 264,709.40/x
  3. Step 3: Cross multiply
    479,569.29x = 661,805.69 × 264,709.40
  4. Step 4: Simplify right side
    479,569.29x = 175,186,187,116.49
  5. Step 5: Solve for x
    x = 175,186,187,116.49/479,569.29
  6. Step 6: Final answer
    x = 365,299.01

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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.