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Finding the Fourth Proportional to 808,543.10, 1,212,960.45 and 335,276.30

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Solution

The fourth proportional to 808,543.10, 1,212,960.45 and 335,276.30 is: 502,974.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,543.10 : 1,212,960.45 = 335,276.30 : x
  2. Step 2: Convert to fraction form
    808,543.10/1,212,960.45 = 335,276.30/x
  3. Step 3: Cross multiply
    808,543.10x = 1,212,960.45 × 335,276.30
  4. Step 4: Simplify right side
    808,543.10x = 406,676,891,722.34
  5. Step 5: Solve for x
    x = 406,676,891,722.34/808,543.10
  6. Step 6: Final answer
    x = 502,974.91

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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.