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Finding the Fourth Proportional to 614,912.04, 922,478.94 and 278,111.88

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Solution

The fourth proportional to 614,912.04, 922,478.94 and 278,111.88 is: 417,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,912.04 : 922,478.94 = 278,111.88 : x
  2. Step 2: Convert to fraction form
    614,912.04/922,478.94 = 278,111.88/x
  3. Step 3: Cross multiply
    614,912.04x = 922,478.94 × 278,111.88
  4. Step 4: Simplify right side
    614,912.04x = 256,552,352,263.81
  5. Step 5: Solve for x
    x = 256,552,352,263.81/614,912.04
  6. Step 6: Final answer
    x = 417,217.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.