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Finding the Fourth Proportional to 634,143.87, 875,118.33 and 347,657.81

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Solution

The fourth proportional to 634,143.87, 875,118.33 and 347,657.81 is: 479,767.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,143.87 : 875,118.33 = 347,657.81 : x
  2. Step 2: Convert to fraction form
    634,143.87/875,118.33 = 347,657.81/x
  3. Step 3: Cross multiply
    634,143.87x = 875,118.33 × 347,657.81
  4. Step 4: Simplify right side
    634,143.87x = 304,241,717,723.07
  5. Step 5: Solve for x
    x = 304,241,717,723.07/634,143.87
  6. Step 6: Final answer
    x = 479,767.66

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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.