Home / 1,879,531.20-2,820,171.60-981,986.40

Finding the Fourth Proportional to 1,879,531.20, 2,820,171.60 and 981,986.40

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Solution

The fourth proportional to 1,879,531.20, 2,820,171.60 and 981,986.40 is: 1,473,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879,531.20 : 2,820,171.60 = 981,986.40 : x
  2. Step 2: Convert to fraction form
    1,879,531.20/2,820,171.60 = 981,986.40/x
  3. Step 3: Cross multiply
    1,879,531.20x = 2,820,171.60 × 981,986.40
  4. Step 4: Simplify right side
    1,879,531.20x = 2,769,370,156,866.24
  5. Step 5: Solve for x
    x = 2,769,370,156,866.24/1,879,531.20
  6. Step 6: Final answer
    x = 1,473,436.65

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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.