Home / 3,478,449.79-5,217,702.42-1,428,582.23

Finding the Fourth Proportional to 3,478,449.79, 5,217,702.42 and 1,428,582.23

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Solution

The fourth proportional to 3,478,449.79, 5,217,702.42 and 1,428,582.23 is: 2,142,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,449.79 : 5,217,702.42 = 1,428,582.23 : x
  2. Step 2: Convert to fraction form
    3,478,449.79/5,217,702.42 = 1,428,582.23/x
  3. Step 3: Cross multiply
    3,478,449.79x = 5,217,702.42 × 1,428,582.23
  4. Step 4: Simplify right side
    3,478,449.79x = 7,453,916,958,640.00
  5. Step 5: Solve for x
    x = 7,453,916,958,640.00/3,478,449.79
  6. Step 6: Final answer
    x = 2,142,884.74

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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.