Home / 1,615,969-2,230,036.50-890,828.20

Finding the Fourth Proportional to 1,615,969, 2,230,036.50 and 890,828.20

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Solution

The fourth proportional to 1,615,969, 2,230,036.50 and 890,828.20 is: 1,229,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,969 : 2,230,036.50 = 890,828.20 : x
  2. Step 2: Convert to fraction form
    1,615,969/2,230,036.50 = 890,828.20/x
  3. Step 3: Cross multiply
    1,615,969x = 2,230,036.50 × 890,828.20
  4. Step 4: Simplify right side
    1,615,969x = 1,986,579,401,229.30
  5. Step 5: Solve for x
    x = 1,986,579,401,229.30/1,615,969
  6. Step 6: Final answer
    x = 1,229,342.52

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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.