Home / 1,208,891.80-1,812,819.30-609,621.40

Finding the Fourth Proportional to 1,208,891.80, 1,812,819.30 and 609,621.40

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Solution

The fourth proportional to 1,208,891.80, 1,812,819.30 and 609,621.40 is: 914,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,891.80 : 1,812,819.30 = 609,621.40 : x
  2. Step 2: Convert to fraction form
    1,208,891.80/1,812,819.30 = 609,621.40/x
  3. Step 3: Cross multiply
    1,208,891.80x = 1,812,819.30 × 609,621.40
  4. Step 4: Simplify right side
    1,208,891.80x = 1,105,133,439,613.02
  5. Step 5: Solve for x
    x = 1,105,133,439,613.02/1,208,891.80
  6. Step 6: Final answer
    x = 914,170.68

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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.