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Finding the Fourth Proportional to 628,858.59, 943,402.75 and 291,852.82

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Solution

The fourth proportional to 628,858.59, 943,402.75 and 291,852.82 is: 437,832.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,858.59 : 943,402.75 = 291,852.82 : x
  2. Step 2: Convert to fraction form
    628,858.59/943,402.75 = 291,852.82/x
  3. Step 3: Cross multiply
    628,858.59x = 943,402.75 × 291,852.82
  4. Step 4: Simplify right side
    628,858.59x = 275,334,753,432.88
  5. Step 5: Solve for x
    x = 275,334,753,432.88/628,858.59
  6. Step 6: Final answer
    x = 437,832.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.