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Finding the Fourth Proportional to 634,086.56, 875,038.80 and 347,609.12

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Solution

The fourth proportional to 634,086.56, 875,038.80 and 347,609.12 is: 479,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,086.56 : 875,038.80 = 347,609.12 : x
  2. Step 2: Convert to fraction form
    634,086.56/875,038.80 = 347,609.12/x
  3. Step 3: Cross multiply
    634,086.56x = 875,038.80 × 347,609.12
  4. Step 4: Simplify right side
    634,086.56x = 304,171,467,233.86
  5. Step 5: Solve for x
    x = 304,171,467,233.86/634,086.56
  6. Step 6: Final answer
    x = 479,700.23

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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.