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Finding the Fourth Proportional to 634,134.12, 875,104.88 and 347,648.06

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Solution

The fourth proportional to 634,134.12, 875,104.88 and 347,648.06 is: 479,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,134.12 : 875,104.88 = 347,648.06 : x
  2. Step 2: Convert to fraction form
    634,134.12/875,104.88 = 347,648.06/x
  3. Step 3: Cross multiply
    634,134.12x = 875,104.88 × 347,648.06
  4. Step 4: Simplify right side
    634,134.12x = 304,228,507,714.77
  5. Step 5: Solve for x
    x = 304,228,507,714.77/634,134.12
  6. Step 6: Final answer
    x = 479,754.20

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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.