Home / 3,420,540.50-4,720,346.28-1,871,802.45

Finding the Fourth Proportional to 3,420,540.50, 4,720,346.28 and 1,871,802.45

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Solution

The fourth proportional to 3,420,540.50, 4,720,346.28 and 1,871,802.45 is: 2,583,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,540.50 : 4,720,346.28 = 1,871,802.45 : x
  2. Step 2: Convert to fraction form
    3,420,540.50/4,720,346.28 = 1,871,802.45/x
  3. Step 3: Cross multiply
    3,420,540.50x = 4,720,346.28 × 1,871,802.45
  4. Step 4: Simplify right side
    3,420,540.50x = 8,835,555,731,752.39
  5. Step 5: Solve for x
    x = 8,835,555,731,752.39/3,420,540.50
  6. Step 6: Final answer
    x = 2,583,087.60

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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.