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Finding the Fourth Proportional to 2,784,007.20, 3,889,212 and 2,784,007.20

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Solution

The fourth proportional to 2,784,007.20, 3,889,212 and 2,784,007.20 is: 3,889,212

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,007.20 : 3,889,212 = 2,784,007.20 : x
  2. Step 2: Convert to fraction form
    2,784,007.20/3,889,212 = 2,784,007.20/x
  3. Step 3: Cross multiply
    2,784,007.20x = 3,889,212 × 2,784,007.20
  4. Step 4: Simplify right side
    2,784,007.20x = 10,827,594,210,326.40
  5. Step 5: Solve for x
    x = 10,827,594,210,326.40/2,784,007.20
  6. Step 6: Final answer
    x = 3,889,212

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.