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Finding the Fourth Proportional to 540,543.39, 745,892.79 and 298,786.95

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Solution

The fourth proportional to 540,543.39, 745,892.79 and 298,786.95 is: 412,294.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,543.39 : 745,892.79 = 298,786.95 : x
  2. Step 2: Convert to fraction form
    540,543.39/745,892.79 = 298,786.95/x
  3. Step 3: Cross multiply
    540,543.39x = 745,892.79 × 298,786.95
  4. Step 4: Simplify right side
    540,543.39x = 222,863,031,751.09
  5. Step 5: Solve for x
    x = 222,863,031,751.09/540,543.39
  6. Step 6: Final answer
    x = 412,294.44

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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.