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Finding the Fourth Proportional to 632,356.34, 872,633.25 and 345,870.27

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Solution

The fourth proportional to 632,356.34, 872,633.25 and 345,870.27 is: 477,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,356.34 : 872,633.25 = 345,870.27 : x
  2. Step 2: Convert to fraction form
    632,356.34/872,633.25 = 345,870.27/x
  3. Step 3: Cross multiply
    632,356.34x = 872,633.25 × 345,870.27
  4. Step 4: Simplify right side
    632,356.34x = 301,817,897,788.48
  5. Step 5: Solve for x
    x = 301,817,897,788.48/632,356.34
  6. Step 6: Final answer
    x = 477,290.86

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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.