Home / 1,615,778.20-2,229,672.42-890,586

Finding the Fourth Proportional to 1,615,778.20, 2,229,672.42 and 890,586

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Solution

The fourth proportional to 1,615,778.20, 2,229,672.42 and 890,586 is: 1,228,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,778.20 : 2,229,672.42 = 890,586 : x
  2. Step 2: Convert to fraction form
    1,615,778.20/2,229,672.42 = 890,586/x
  3. Step 3: Cross multiply
    1,615,778.20x = 2,229,672.42 × 890,586
  4. Step 4: Simplify right side
    1,615,778.20x = 1,985,715,041,838.12
  5. Step 5: Solve for x
    x = 1,985,715,041,838.12/1,615,778.20
  6. Step 6: Final answer
    x = 1,228,952.74

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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.