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Finding the Fourth Proportional to 540,449.64, 745,781.04 and 298,718.64

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Solution

The fourth proportional to 540,449.64, 745,781.04 and 298,718.64 is: 412,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,449.64 : 745,781.04 = 298,718.64 : x
  2. Step 2: Convert to fraction form
    540,449.64/745,781.04 = 298,718.64/x
  3. Step 3: Cross multiply
    540,449.64x = 745,781.04 × 298,718.64
  4. Step 4: Simplify right side
    540,449.64x = 222,778,698,006.59
  5. Step 5: Solve for x
    x = 222,778,698,006.59/540,449.64
  6. Step 6: Final answer
    x = 412,209.91

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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.