Home / 3,860,809.20-5,791,213.80-1,021,208.40

Finding the Fourth Proportional to 3,860,809.20, 5,791,213.80 and 1,021,208.40

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Solution

The fourth proportional to 3,860,809.20, 5,791,213.80 and 1,021,208.40 is: 1,531,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860,809.20 : 5,791,213.80 = 1,021,208.40 : x
  2. Step 2: Convert to fraction form
    3,860,809.20/5,791,213.80 = 1,021,208.40/x
  3. Step 3: Cross multiply
    3,860,809.20x = 5,791,213.80 × 1,021,208.40
  4. Step 4: Simplify right side
    3,860,809.20x = 5,914,036,178,755.92
  5. Step 5: Solve for x
    x = 5,914,036,178,755.92/3,860,809.20
  6. Step 6: Final answer
    x = 1,531,812.60

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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.