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Finding the Fourth Proportional to 540,168.69, 745,412.65 and 298,446.09

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Solution

The fourth proportional to 540,168.69, 745,412.65 and 298,446.09 is: 411,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,168.69 : 745,412.65 = 298,446.09 : x
  2. Step 2: Convert to fraction form
    540,168.69/745,412.65 = 298,446.09/x
  3. Step 3: Cross multiply
    540,168.69x = 745,412.65 × 298,446.09
  4. Step 4: Simplify right side
    540,168.69x = 222,465,490,829.04
  5. Step 5: Solve for x
    x = 222,465,490,829.04/540,168.69
  6. Step 6: Final answer
    x = 411,844.48

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1.5x scale

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.