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Finding the Fourth Proportional to 479,643.65, 661,910.35 and 264,785.48

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Solution

The fourth proportional to 479,643.65, 661,910.35 and 264,785.48 is: 365,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,643.65 : 661,910.35 = 264,785.48 : x
  2. Step 2: Convert to fraction form
    479,643.65/661,910.35 = 264,785.48/x
  3. Step 3: Cross multiply
    479,643.65x = 661,910.35 × 264,785.48
  4. Step 4: Simplify right side
    479,643.65x = 175,264,249,245.31
  5. Step 5: Solve for x
    x = 175,264,249,245.31/479,643.65
  6. Step 6: Final answer
    x = 365,405.13

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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.