Home / 632,454.58-872,780.21-345,971.25

Finding the Fourth Proportional to 632,454.58, 872,780.21 and 345,971.25

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Solution

The fourth proportional to 632,454.58, 872,780.21 and 345,971.25 is: 477,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,454.58 : 872,780.21 = 345,971.25 : x
  2. Step 2: Convert to fraction form
    632,454.58/872,780.21 = 345,971.25/x
  3. Step 3: Cross multiply
    632,454.58x = 872,780.21 × 345,971.25
  4. Step 4: Simplify right side
    632,454.58x = 301,956,861,742.59
  5. Step 5: Solve for x
    x = 301,956,861,742.59/632,454.58
  6. Step 6: Final answer
    x = 477,436.44

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Double scale
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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.