Home / 808,716.80-1,210,936.80-648,045.20

Finding the Fourth Proportional to 808,716.80, 1,210,936.80 and 648,045.20

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Solution

The fourth proportional to 808,716.80, 1,210,936.80 and 648,045.20 is: 970,354.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,716.80 : 1,210,936.80 = 648,045.20 : x
  2. Step 2: Convert to fraction form
    808,716.80/1,210,936.80 = 648,045.20/x
  3. Step 3: Cross multiply
    808,716.80x = 1,210,936.80 × 648,045.20
  4. Step 4: Simplify right side
    808,716.80x = 784,741,780,743.36
  5. Step 5: Solve for x
    x = 784,741,780,743.36/808,716.80
  6. Step 6: Final answer
    x = 970,354.25

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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.