Home / 784,574.48-1,079,315.16-687,340.46

Finding the Fourth Proportional to 784,574.48, 1,079,315.16 and 687,340.46

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Solution

The fourth proportional to 784,574.48, 1,079,315.16 and 687,340.46 is: 945,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,574.48 : 1,079,315.16 = 687,340.46 : x
  2. Step 2: Convert to fraction form
    784,574.48/1,079,315.16 = 687,340.46/x
  3. Step 3: Cross multiply
    784,574.48x = 1,079,315.16 × 687,340.46
  4. Step 4: Simplify right side
    784,574.48x = 741,856,978,559.37
  5. Step 5: Solve for x
    x = 741,856,978,559.37/784,574.48
  6. Step 6: Final answer
    x = 945,553.29

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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.