Home / 1,659,416.40-2,489,124.60-912,920.40

Finding the Fourth Proportional to 1,659,416.40, 2,489,124.60 and 912,920.40

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Solution

The fourth proportional to 1,659,416.40, 2,489,124.60 and 912,920.40 is: 1,369,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,416.40 : 2,489,124.60 = 912,920.40 : x
  2. Step 2: Convert to fraction form
    1,659,416.40/2,489,124.60 = 912,920.40/x
  3. Step 3: Cross multiply
    1,659,416.40x = 2,489,124.60 × 912,920.40
  4. Step 4: Simplify right side
    1,659,416.40x = 2,272,372,625,481.84
  5. Step 5: Solve for x
    x = 2,272,372,625,481.84/1,659,416.40
  6. Step 6: Final answer
    x = 1,369,380.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.