Home / 2,712,019.20-4,068,028.80-690,259.20

Finding the Fourth Proportional to 2,712,019.20, 4,068,028.80 and 690,259.20

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Solution

The fourth proportional to 2,712,019.20, 4,068,028.80 and 690,259.20 is: 1,035,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712,019.20 : 4,068,028.80 = 690,259.20 : x
  2. Step 2: Convert to fraction form
    2,712,019.20/4,068,028.80 = 690,259.20/x
  3. Step 3: Cross multiply
    2,712,019.20x = 4,068,028.80 × 690,259.20
  4. Step 4: Simplify right side
    2,712,019.20x = 2,807,994,305,064.96
  5. Step 5: Solve for x
    x = 2,807,994,305,064.96/2,712,019.20
  6. Step 6: Final answer
    x = 1,035,388.80

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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.