Home / 1,615,929.76-2,229,882.76-890,740

Finding the Fourth Proportional to 1,615,929.76, 2,229,882.76 and 890,740

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Solution

The fourth proportional to 1,615,929.76, 2,229,882.76 and 890,740 is: 1,229,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,929.76 : 2,229,882.76 = 890,740 : x
  2. Step 2: Convert to fraction form
    1,615,929.76/2,229,882.76 = 890,740/x
  3. Step 3: Cross multiply
    1,615,929.76x = 2,229,882.76 × 890,740
  4. Step 4: Simplify right side
    1,615,929.76x = 1,986,245,769,642.40
  5. Step 5: Solve for x
    x = 1,986,245,769,642.40/1,615,929.76
  6. Step 6: Final answer
    x = 1,229,165.91

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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.