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Finding the Fourth Proportional to 632,374.29, 872,690.36 and 345,894.38

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Solution

The fourth proportional to 632,374.29, 872,690.36 and 345,894.38 is: 477,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,374.29 : 872,690.36 = 345,894.38 : x
  2. Step 2: Convert to fraction form
    632,374.29/872,690.36 = 345,894.38/x
  3. Step 3: Cross multiply
    632,374.29x = 872,690.36 × 345,894.38
  4. Step 4: Simplify right side
    632,374.29x = 301,858,685,729.40
  5. Step 5: Solve for x
    x = 301,858,685,729.40/632,374.29
  6. Step 6: Final answer
    x = 477,341.81

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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.