Home / 3,909,376.80-5,861,991.60-1,385,114.40

Finding the Fourth Proportional to 3,909,376.80, 5,861,991.60 and 1,385,114.40

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Solution

The fourth proportional to 3,909,376.80, 5,861,991.60 and 1,385,114.40 is: 2,076,936.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,376.80 : 5,861,991.60 = 1,385,114.40 : x
  2. Step 2: Convert to fraction form
    3,909,376.80/5,861,991.60 = 1,385,114.40/x
  3. Step 3: Cross multiply
    3,909,376.80x = 5,861,991.60 × 1,385,114.40
  4. Step 4: Simplify right side
    3,909,376.80x = 8,119,528,977,839.04
  5. Step 5: Solve for x
    x = 8,119,528,977,839.04/3,909,376.80
  6. Step 6: Final answer
    x = 2,076,936.91

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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.