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Finding the Fourth Proportional to 632,181.78, 872,410.48 and 345,701.87

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Solution

The fourth proportional to 632,181.78, 872,410.48 and 345,701.87 is: 477,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,181.78 : 872,410.48 = 345,701.87 : x
  2. Step 2: Convert to fraction form
    632,181.78/872,410.48 = 345,701.87/x
  3. Step 3: Cross multiply
    632,181.78x = 872,410.48 × 345,701.87
  4. Step 4: Simplify right side
    632,181.78x = 301,593,934,343.60
  5. Step 5: Solve for x
    x = 301,593,934,343.60/632,181.78
  6. Step 6: Final answer
    x = 477,068.37

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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.