Home / 992,018.70-1,486,846.71-690,868.80

Finding the Fourth Proportional to 992,018.70, 1,486,846.71 and 690,868.80

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Solution

The fourth proportional to 992,018.70, 1,486,846.71 and 690,868.80 is: 1,035,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,018.70 : 1,486,846.71 = 690,868.80 : x
  2. Step 2: Convert to fraction form
    992,018.70/1,486,846.71 = 690,868.80/x
  3. Step 3: Cross multiply
    992,018.70x = 1,486,846.71 × 690,868.80
  4. Step 4: Simplify right side
    992,018.70x = 1,027,216,002,321.65
  5. Step 5: Solve for x
    x = 1,027,216,002,321.65/992,018.70
  6. Step 6: Final answer
    x = 1,035,480.48

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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.