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Finding the Fourth Proportional to 1,408,007.99, 1,942,725.52 and 949,972.30

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Solution

The fourth proportional to 1,408,007.99, 1,942,725.52 and 949,972.30 is: 1,310,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,007.99 : 1,942,725.52 = 949,972.30 : x
  2. Step 2: Convert to fraction form
    1,408,007.99/1,942,725.52 = 949,972.30/x
  3. Step 3: Cross multiply
    1,408,007.99x = 1,942,725.52 × 949,972.30
  4. Step 4: Simplify right side
    1,408,007.99x = 1,845,535,430,503.10
  5. Step 5: Solve for x
    x = 1,845,535,430,503.10/1,408,007.99
  6. Step 6: Final answer
    x = 1,310,742.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.