Home / 1,659,697.20-2,490,774.60-663,140.40

Finding the Fourth Proportional to 1,659,697.20, 2,490,774.60 and 663,140.40

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Solution

The fourth proportional to 1,659,697.20, 2,490,774.60 and 663,140.40 is: 995,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,697.20 : 2,490,774.60 = 663,140.40 : x
  2. Step 2: Convert to fraction form
    1,659,697.20/2,490,774.60 = 663,140.40/x
  3. Step 3: Cross multiply
    1,659,697.20x = 2,490,774.60 × 663,140.40
  4. Step 4: Simplify right side
    1,659,697.20x = 1,651,733,264,553.84
  5. Step 5: Solve for x
    x = 1,651,733,264,553.84/1,659,697.20
  6. Step 6: Final answer
    x = 995,201.57

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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.