Home / 2,787,431.40-4,178,322.90-1,888,963.20

Finding the Fourth Proportional to 2,787,431.40, 4,178,322.90 and 1,888,963.20

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Solution

The fourth proportional to 2,787,431.40, 4,178,322.90 and 1,888,963.20 is: 2,831,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,431.40 : 4,178,322.90 = 1,888,963.20 : x
  2. Step 2: Convert to fraction form
    2,787,431.40/4,178,322.90 = 1,888,963.20/x
  3. Step 3: Cross multiply
    2,787,431.40x = 4,178,322.90 × 1,888,963.20
  4. Step 4: Simplify right side
    2,787,431.40x = 7,892,698,195,817.28
  5. Step 5: Solve for x
    x = 7,892,698,195,817.28/2,787,431.40
  6. Step 6: Final answer
    x = 2,831,530.92

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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.