Home / 776,786.20-1,167,803.70-661,312.60

Finding the Fourth Proportional to 776,786.20, 1,167,803.70 and 661,312.60

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Solution

The fourth proportional to 776,786.20, 1,167,803.70 and 661,312.60 is: 994,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,786.20 : 1,167,803.70 = 661,312.60 : x
  2. Step 2: Convert to fraction form
    776,786.20/1,167,803.70 = 661,312.60/x
  3. Step 3: Cross multiply
    776,786.20x = 1,167,803.70 × 661,312.60
  4. Step 4: Simplify right side
    776,786.20x = 772,283,301,136.62
  5. Step 5: Solve for x
    x = 772,283,301,136.62/776,786.20
  6. Step 6: Final answer
    x = 994,203.17

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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.