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Finding the Fourth Proportional to 634,164.30, 875,127.78 and 347,674.59

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Solution

The fourth proportional to 634,164.30, 875,127.78 and 347,674.59 is: 479,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,164.30 : 875,127.78 = 347,674.59 : x
  2. Step 2: Convert to fraction form
    634,164.30/875,127.78 = 347,674.59/x
  3. Step 3: Cross multiply
    634,164.30x = 875,127.78 × 347,674.59
  4. Step 4: Simplify right side
    634,164.30x = 304,259,692,109.11
  5. Step 5: Solve for x
    x = 304,259,692,109.11/634,164.30
  6. Step 6: Final answer
    x = 479,780.54

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1.5x scale

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.