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Finding the Fourth Proportional to 703,841.04, 971,072.28 and 397,887.84

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Solution

The fourth proportional to 703,841.04, 971,072.28 and 397,887.84 is: 548,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,841.04 : 971,072.28 = 397,887.84 : x
  2. Step 2: Convert to fraction form
    703,841.04/971,072.28 = 397,887.84/x
  3. Step 3: Cross multiply
    703,841.04x = 971,072.28 × 397,887.84
  4. Step 4: Simplify right side
    703,841.04x = 386,377,851,973.08
  5. Step 5: Solve for x
    x = 386,377,851,973.08/703,841.04
  6. Step 6: Final answer
    x = 548,956.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.