Home / 645,942.18-968,261.94-406,227.39

Finding the Fourth Proportional to 645,942.18, 968,261.94 and 406,227.39

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Solution

The fourth proportional to 645,942.18, 968,261.94 and 406,227.39 is: 608,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,942.18 : 968,261.94 = 406,227.39 : x
  2. Step 2: Convert to fraction form
    645,942.18/968,261.94 = 406,227.39/x
  3. Step 3: Cross multiply
    645,942.18x = 968,261.94 × 406,227.39
  4. Step 4: Simplify right side
    645,942.18x = 393,334,521,112.06
  5. Step 5: Solve for x
    x = 393,334,521,112.06/645,942.18
  6. Step 6: Final answer
    x = 608,931.47

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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.