Home / 1,399,005.32-2,099,171.88-724,960.64

Finding the Fourth Proportional to 1,399,005.32, 2,099,171.88 and 724,960.64

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Solution

The fourth proportional to 1,399,005.32, 2,099,171.88 and 724,960.64 is: 1,087,784.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,005.32 : 2,099,171.88 = 724,960.64 : x
  2. Step 2: Convert to fraction form
    1,399,005.32/2,099,171.88 = 724,960.64/x
  3. Step 3: Cross multiply
    1,399,005.32x = 2,099,171.88 × 724,960.64
  4. Step 4: Simplify right side
    1,399,005.32x = 1,521,816,989,594.80
  5. Step 5: Solve for x
    x = 1,521,816,989,594.80/1,399,005.32
  6. Step 6: Final answer
    x = 1,087,784.99

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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.