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Finding the Fourth Proportional to 632,338.85, 872,648.49 and 345,858.95

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Solution

The fourth proportional to 632,338.85, 872,648.49 and 345,858.95 is: 477,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,338.85 : 872,648.49 = 345,858.95 : x
  2. Step 2: Convert to fraction form
    632,338.85/872,648.49 = 345,858.95/x
  3. Step 3: Cross multiply
    632,338.85x = 872,648.49 × 345,858.95
  4. Step 4: Simplify right side
    632,338.85x = 301,813,290,470.49
  5. Step 5: Solve for x
    x = 301,813,290,470.49/632,338.85
  6. Step 6: Final answer
    x = 477,296.77

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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.