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Finding the Fourth Proportional to 632,451.59, 872,782.90 and 345,971.60

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Solution

The fourth proportional to 632,451.59, 872,782.90 and 345,971.60 is: 477,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,451.59 : 872,782.90 = 345,971.60 : x
  2. Step 2: Convert to fraction form
    632,451.59/872,782.90 = 345,971.60/x
  3. Step 3: Cross multiply
    632,451.59x = 872,782.90 × 345,971.60
  4. Step 4: Simplify right side
    632,451.59x = 301,958,096,365.64
  5. Step 5: Solve for x
    x = 301,958,096,365.64/632,451.59
  6. Step 6: Final answer
    x = 477,440.65

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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.