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Finding the Fourth Proportional to 578,084.08, 866,003.94 and 426,005.12

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Solution

The fourth proportional to 578,084.08, 866,003.94 and 426,005.12 is: 638,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,084.08 : 866,003.94 = 426,005.12 : x
  2. Step 2: Convert to fraction form
    578,084.08/866,003.94 = 426,005.12/x
  3. Step 3: Cross multiply
    578,084.08x = 866,003.94 × 426,005.12
  4. Step 4: Simplify right side
    578,084.08x = 368,922,112,380.17
  5. Step 5: Solve for x
    x = 368,922,112,380.17/578,084.08
  6. Step 6: Final answer
    x = 638,180.72

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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.