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Finding the Fourth Proportional to 634,627.82, 875,809.14 and 348,156.34

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Solution

The fourth proportional to 634,627.82, 875,809.14 and 348,156.34 is: 480,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,627.82 : 875,809.14 = 348,156.34 : x
  2. Step 2: Convert to fraction form
    634,627.82/875,809.14 = 348,156.34/x
  3. Step 3: Cross multiply
    634,627.82x = 875,809.14 × 348,156.34
  4. Step 4: Simplify right side
    634,627.82x = 304,918,504,720.95
  5. Step 5: Solve for x
    x = 304,918,504,720.95/634,627.82
  6. Step 6: Final answer
    x = 480,468.23

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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.