Home / 823,805.10-1,234,758.60-318,143.16

Finding the Fourth Proportional to 823,805.10, 1,234,758.60 and 318,143.16

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Solution

The fourth proportional to 823,805.10, 1,234,758.60 and 318,143.16 is: 476,848.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,805.10 : 1,234,758.60 = 318,143.16 : x
  2. Step 2: Convert to fraction form
    823,805.10/1,234,758.60 = 318,143.16/x
  3. Step 3: Cross multiply
    823,805.10x = 1,234,758.60 × 318,143.16
  4. Step 4: Simplify right side
    823,805.10x = 392,830,002,841.18
  5. Step 5: Solve for x
    x = 392,830,002,841.18/823,805.10
  6. Step 6: Final answer
    x = 476,848.23

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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.