Home / 1,299,205.80-1,947,771.90-550,636.20

Finding the Fourth Proportional to 1,299,205.80, 1,947,771.90 and 550,636.20

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Solution

The fourth proportional to 1,299,205.80, 1,947,771.90 and 550,636.20 is: 825,514.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,205.80 : 1,947,771.90 = 550,636.20 : x
  2. Step 2: Convert to fraction form
    1,299,205.80/1,947,771.90 = 550,636.20/x
  3. Step 3: Cross multiply
    1,299,205.80x = 1,947,771.90 × 550,636.20
  4. Step 4: Simplify right side
    1,299,205.80x = 1,072,513,717,482.78
  5. Step 5: Solve for x
    x = 1,072,513,717,482.78/1,299,205.80
  6. Step 6: Final answer
    x = 825,514.88

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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.