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Finding the Fourth Proportional to 634,502.06, 875,610.50 and 392,736.50

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Solution

The fourth proportional to 634,502.06, 875,610.50 and 392,736.50 is: 541,974.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,502.06 : 875,610.50 = 392,736.50 : x
  2. Step 2: Convert to fraction form
    634,502.06/875,610.50 = 392,736.50/x
  3. Step 3: Cross multiply
    634,502.06x = 875,610.50 × 392,736.50
  4. Step 4: Simplify right side
    634,502.06x = 343,884,203,133.25
  5. Step 5: Solve for x
    x = 343,884,203,133.25/634,502.06
  6. Step 6: Final answer
    x = 541,974.92

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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.