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Finding the Fourth Proportional to 802,940.16, 1,204,604.64 and 402,586.32

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Solution

The fourth proportional to 802,940.16, 1,204,604.64 and 402,586.32 is: 603,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,940.16 : 1,204,604.64 = 402,586.32 : x
  2. Step 2: Convert to fraction form
    802,940.16/1,204,604.64 = 402,586.32/x
  3. Step 3: Cross multiply
    802,940.16x = 1,204,604.64 × 402,586.32
  4. Step 4: Simplify right side
    802,940.16x = 484,957,349,072.53
  5. Step 5: Solve for x
    x = 484,957,349,072.53/802,940.16
  6. Step 6: Final answer
    x = 603,976.95

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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.