Home / 771,986.77-1,158,065.51-266,490.43

Finding the Fourth Proportional to 771,986.77, 1,158,065.51 and 266,490.43

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Solution

The fourth proportional to 771,986.77, 1,158,065.51 and 266,490.43 is: 399,765.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,986.77 : 1,158,065.51 = 266,490.43 : x
  2. Step 2: Convert to fraction form
    771,986.77/1,158,065.51 = 266,490.43/x
  3. Step 3: Cross multiply
    771,986.77x = 1,158,065.51 × 266,490.43
  4. Step 4: Simplify right side
    771,986.77x = 308,613,375,728.07
  5. Step 5: Solve for x
    x = 308,613,375,728.07/771,986.77
  6. Step 6: Final answer
    x = 399,765.11

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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.