Home / 1,888,150.80-2,831,832.60-690,637.20

Finding the Fourth Proportional to 1,888,150.80, 2,831,832.60 and 690,637.20

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Solution

The fourth proportional to 1,888,150.80, 2,831,832.60 and 690,637.20 is: 1,035,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,150.80 : 2,831,832.60 = 690,637.20 : x
  2. Step 2: Convert to fraction form
    1,888,150.80/2,831,832.60 = 690,637.20/x
  3. Step 3: Cross multiply
    1,888,150.80x = 2,831,832.60 × 690,637.20
  4. Step 4: Simplify right side
    1,888,150.80x = 1,955,768,937,732.72
  5. Step 5: Solve for x
    x = 1,955,768,937,732.72/1,888,150.80
  6. Step 6: Final answer
    x = 1,035,811.83

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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.