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Finding the Fourth Proportional to 400,614.80, 552,854.97 and 219,323.70

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Solution

The fourth proportional to 400,614.80, 552,854.97 and 219,323.70 is: 302,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,614.80 : 552,854.97 = 219,323.70 : x
  2. Step 2: Convert to fraction form
    400,614.80/552,854.97 = 219,323.70/x
  3. Step 3: Cross multiply
    400,614.80x = 552,854.97 × 219,323.70
  4. Step 4: Simplify right side
    400,614.80x = 121,254,197,583.79
  5. Step 5: Solve for x
    x = 121,254,197,583.79/400,614.80
  6. Step 6: Final answer
    x = 302,670.29

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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.