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Finding the Fourth Proportional to 634,506.78, 875,620.62 and 348,029.22

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Solution

The fourth proportional to 634,506.78, 875,620.62 and 348,029.22 is: 480,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,506.78 : 875,620.62 = 348,029.22 : x
  2. Step 2: Convert to fraction form
    634,506.78/875,620.62 = 348,029.22/x
  3. Step 3: Cross multiply
    634,506.78x = 875,620.62 × 348,029.22
  4. Step 4: Simplify right side
    634,506.78x = 304,741,561,394.52
  5. Step 5: Solve for x
    x = 304,741,561,394.52/634,506.78
  6. Step 6: Final answer
    x = 480,281.02

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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.