Home / 854,824.96-1,282,640.64-381,468.16

Finding the Fourth Proportional to 854,824.96, 1,282,640.64 and 381,468.16

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Solution

The fourth proportional to 854,824.96, 1,282,640.64 and 381,468.16 is: 572,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,824.96 : 1,282,640.64 = 381,468.16 : x
  2. Step 2: Convert to fraction form
    854,824.96/1,282,640.64 = 381,468.16/x
  3. Step 3: Cross multiply
    854,824.96x = 1,282,640.64 × 381,468.16
  4. Step 4: Simplify right side
    854,824.96x = 489,286,564,882.02
  5. Step 5: Solve for x
    x = 489,286,564,882.02/854,824.96
  6. Step 6: Final answer
    x = 572,382.17

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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.