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Finding the Fourth Proportional to 3,865,608.54, 5,337,208.80 and 2,415,955.62

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Solution

The fourth proportional to 3,865,608.54, 5,337,208.80 and 2,415,955.62 is: 3,335,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,608.54 : 5,337,208.80 = 2,415,955.62 : x
  2. Step 2: Convert to fraction form
    3,865,608.54/5,337,208.80 = 2,415,955.62/x
  3. Step 3: Cross multiply
    3,865,608.54x = 5,337,208.80 × 2,415,955.62
  4. Step 4: Simplify right side
    3,865,608.54x = 12,894,459,595,473.46
  5. Step 5: Solve for x
    x = 12,894,459,595,473.46/3,865,608.54
  6. Step 6: Final answer
    x = 3,335,686.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.