Home / 808,728.20-1,213,092.30-310,092.20

Finding the Fourth Proportional to 808,728.20, 1,213,092.30 and 310,092.20

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Solution

The fourth proportional to 808,728.20, 1,213,092.30 and 310,092.20 is: 465,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,728.20 : 1,213,092.30 = 310,092.20 : x
  2. Step 2: Convert to fraction form
    808,728.20/1,213,092.30 = 310,092.20/x
  3. Step 3: Cross multiply
    808,728.20x = 1,213,092.30 × 310,092.20
  4. Step 4: Simplify right side
    808,728.20x = 376,170,460,110.06
  5. Step 5: Solve for x
    x = 376,170,460,110.06/808,728.20
  6. Step 6: Final answer
    x = 465,138.30

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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.