Home / 808,713.48-1,211,872.15-328,357.16

Finding the Fourth Proportional to 808,713.48, 1,211,872.15 and 328,357.16

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Solution

The fourth proportional to 808,713.48, 1,211,872.15 and 328,357.16 is: 492,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,713.48 : 1,211,872.15 = 328,357.16 : x
  2. Step 2: Convert to fraction form
    808,713.48/1,211,872.15 = 328,357.16/x
  3. Step 3: Cross multiply
    808,713.48x = 1,211,872.15 × 328,357.16
  4. Step 4: Simplify right side
    808,713.48x = 397,926,897,457.09
  5. Step 5: Solve for x
    x = 397,926,897,457.09/808,713.48
  6. Step 6: Final answer
    x = 492,049.29

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Double scale
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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.