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Finding the Fourth Proportional to 807,714.20, 1,211,133.90 and 333,864.20

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Solution

The fourth proportional to 807,714.20, 1,211,133.90 and 333,864.20 is: 500,615.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,714.20 : 1,211,133.90 = 333,864.20 : x
  2. Step 2: Convert to fraction form
    807,714.20/1,211,133.90 = 333,864.20/x
  3. Step 3: Cross multiply
    807,714.20x = 1,211,133.90 × 333,864.20
  4. Step 4: Simplify right side
    807,714.20x = 404,354,250,616.38
  5. Step 5: Solve for x
    x = 404,354,250,616.38/807,714.20
  6. Step 6: Final answer
    x = 500,615.50

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1.5x scale

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.