Home / 783,460.27-1,080,777.18-511,687.36

Finding the Fourth Proportional to 783,460.27, 1,080,777.18 and 511,687.36

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Solution

The fourth proportional to 783,460.27, 1,080,777.18 and 511,687.36 is: 705,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,460.27 : 1,080,777.18 = 511,687.36 : x
  2. Step 2: Convert to fraction form
    783,460.27/1,080,777.18 = 511,687.36/x
  3. Step 3: Cross multiply
    783,460.27x = 1,080,777.18 × 511,687.36
  4. Step 4: Simplify right side
    783,460.27x = 553,020,021,982.45
  5. Step 5: Solve for x
    x = 553,020,021,982.45/783,460.27
  6. Step 6: Final answer
    x = 705,868.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.