Home / 1,615,392.35-2,229,288.14-890,286.76

Finding the Fourth Proportional to 1,615,392.35, 2,229,288.14 and 890,286.76

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Solution

The fourth proportional to 1,615,392.35, 2,229,288.14 and 890,286.76 is: 1,228,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,392.35 : 2,229,288.14 = 890,286.76 : x
  2. Step 2: Convert to fraction form
    1,615,392.35/2,229,288.14 = 890,286.76/x
  3. Step 3: Cross multiply
    1,615,392.35x = 2,229,288.14 × 890,286.76
  4. Step 4: Simplify right side
    1,615,392.35x = 1,984,705,720,279.35
  5. Step 5: Solve for x
    x = 1,984,705,720,279.35/1,615,392.35
  6. Step 6: Final answer
    x = 1,228,621.47

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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.