Home / 1,615,939.81-2,230,012.10-890,813.46

Finding the Fourth Proportional to 1,615,939.81, 2,230,012.10 and 890,813.46

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Solution

The fourth proportional to 1,615,939.81, 2,230,012.10 and 890,813.46 is: 1,229,330.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,939.81 : 2,230,012.10 = 890,813.46 : x
  2. Step 2: Convert to fraction form
    1,615,939.81/2,230,012.10 = 890,813.46/x
  3. Step 3: Cross multiply
    1,615,939.81x = 2,230,012.10 × 890,813.46
  4. Step 4: Simplify right side
    1,615,939.81x = 1,986,524,794,642.87
  5. Step 5: Solve for x
    x = 1,986,524,794,642.87/1,615,939.81
  6. Step 6: Final answer
    x = 1,229,330.93

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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.