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Finding the Fourth Proportional to 479,412.72, 661,602.78 and 264,569.10

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Solution

The fourth proportional to 479,412.72, 661,602.78 and 264,569.10 is: 365,112.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,412.72 : 661,602.78 = 264,569.10 : x
  2. Step 2: Convert to fraction form
    479,412.72/661,602.78 = 264,569.10/x
  3. Step 3: Cross multiply
    479,412.72x = 661,602.78 × 264,569.10
  4. Step 4: Simplify right side
    479,412.72x = 175,039,652,062.10
  5. Step 5: Solve for x
    x = 175,039,652,062.10/479,412.72
  6. Step 6: Final answer
    x = 365,112.66

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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.