Home / 388,919.58-583,397.90-189,001.79

Finding the Fourth Proportional to 388,919.58, 583,397.90 and 189,001.79

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Solution

The fourth proportional to 388,919.58, 583,397.90 and 189,001.79 is: 283,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,919.58 : 583,397.90 = 189,001.79 : x
  2. Step 2: Convert to fraction form
    388,919.58/583,397.90 = 189,001.79/x
  3. Step 3: Cross multiply
    388,919.58x = 583,397.90 × 189,001.79
  4. Step 4: Simplify right side
    388,919.58x = 110,263,247,382.24
  5. Step 5: Solve for x
    x = 110,263,247,382.24/388,919.58
  6. Step 6: Final answer
    x = 283,511.69

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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.