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Finding the Fourth Proportional to 632,939.28, 873,456.48 and 346,461

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Solution

The fourth proportional to 632,939.28, 873,456.48 and 346,461 is: 478,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,939.28 : 873,456.48 = 346,461 : x
  2. Step 2: Convert to fraction form
    632,939.28/873,456.48 = 346,461/x
  3. Step 3: Cross multiply
    632,939.28x = 873,456.48 × 346,461
  4. Step 4: Simplify right side
    632,939.28x = 302,618,605,517.28
  5. Step 5: Solve for x
    x = 302,618,605,517.28/632,939.28
  6. Step 6: Final answer
    x = 478,116.33

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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.