Home / 1,280,746.96-1,921,120.42-482,207.64

Finding the Fourth Proportional to 1,280,746.96, 1,921,120.42 and 482,207.64

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Solution

The fourth proportional to 1,280,746.96, 1,921,120.42 and 482,207.64 is: 723,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,746.96 : 1,921,120.42 = 482,207.64 : x
  2. Step 2: Convert to fraction form
    1,280,746.96/1,921,120.42 = 482,207.64/x
  3. Step 3: Cross multiply
    1,280,746.96x = 1,921,120.42 × 482,207.64
  4. Step 4: Simplify right side
    1,280,746.96x = 926,378,943,884.01
  5. Step 5: Solve for x
    x = 926,378,943,884.01/1,280,746.96
  6. Step 6: Final answer
    x = 723,311.45

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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.