Home / 804,979.80-1,207,457.13-205,935.78

Finding the Fourth Proportional to 804,979.80, 1,207,457.13 and 205,935.78

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Solution

The fourth proportional to 804,979.80, 1,207,457.13 and 205,935.78 is: 308,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,979.80 : 1,207,457.13 = 205,935.78 : x
  2. Step 2: Convert to fraction form
    804,979.80/1,207,457.13 = 205,935.78/x
  3. Step 3: Cross multiply
    804,979.80x = 1,207,457.13 × 205,935.78
  4. Step 4: Simplify right side
    804,979.80x = 248,658,625,883.11
  5. Step 5: Solve for x
    x = 248,658,625,883.11/804,979.80
  6. Step 6: Final answer
    x = 308,900.45

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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.