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Finding the Fourth Proportional to 618,492.92, 927,091.98 and 258,869.93

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Solution

The fourth proportional to 618,492.92, 927,091.98 and 258,869.93 is: 388,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,492.92 : 927,091.98 = 258,869.93 : x
  2. Step 2: Convert to fraction form
    618,492.92/927,091.98 = 258,869.93/x
  3. Step 3: Cross multiply
    618,492.92x = 927,091.98 × 258,869.93
  4. Step 4: Simplify right side
    618,492.92x = 239,996,231,330.70
  5. Step 5: Solve for x
    x = 239,996,231,330.70/618,492.92
  6. Step 6: Final answer
    x = 388,033.92

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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.