Home / 2,992,138.40-4,488,207.60-970,378.40

Finding the Fourth Proportional to 2,992,138.40, 4,488,207.60 and 970,378.40

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Solution

The fourth proportional to 2,992,138.40, 4,488,207.60 and 970,378.40 is: 1,455,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992,138.40 : 4,488,207.60 = 970,378.40 : x
  2. Step 2: Convert to fraction form
    2,992,138.40/4,488,207.60 = 970,378.40/x
  3. Step 3: Cross multiply
    2,992,138.40x = 4,488,207.60 × 970,378.40
  4. Step 4: Simplify right side
    2,992,138.40x = 4,355,259,709,755.84
  5. Step 5: Solve for x
    x = 4,355,259,709,755.84/2,992,138.40
  6. Step 6: Final answer
    x = 1,455,567.60

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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.