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Finding the Fourth Proportional to 1,018,875, 1,528,545.78 and 354,027

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Solution

The fourth proportional to 1,018,875, 1,528,545.78 and 354,027 is: 531,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,875 : 1,528,545.78 = 354,027 : x
  2. Step 2: Convert to fraction form
    1,018,875/1,528,545.78 = 354,027/x
  3. Step 3: Cross multiply
    1,018,875x = 1,528,545.78 × 354,027
  4. Step 4: Simplify right side
    1,018,875x = 541,146,476,856.06
  5. Step 5: Solve for x
    x = 541,146,476,856.06/1,018,875
  6. Step 6: Final answer
    x = 531,121.56

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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.