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Finding the Fourth Proportional to 479,345.28, 661,510.32 and 264,499.19

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Solution

The fourth proportional to 479,345.28, 661,510.32 and 264,499.19 is: 365,016.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,345.28 : 661,510.32 = 264,499.19 : x
  2. Step 2: Convert to fraction form
    479,345.28/661,510.32 = 264,499.19/x
  3. Step 3: Cross multiply
    479,345.28x = 661,510.32 × 264,499.19
  4. Step 4: Simplify right side
    479,345.28x = 174,968,940,509.09
  5. Step 5: Solve for x
    x = 174,968,940,509.09/479,345.28
  6. Step 6: Final answer
    x = 365,016.51

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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.