Home / 1,210,281.30-1,819,358.55-857,736.90

Finding the Fourth Proportional to 1,210,281.30, 1,819,358.55 and 857,736.90

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Solution

The fourth proportional to 1,210,281.30, 1,819,358.55 and 857,736.90 is: 1,289,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,281.30 : 1,819,358.55 = 857,736.90 : x
  2. Step 2: Convert to fraction form
    1,210,281.30/1,819,358.55 = 857,736.90/x
  3. Step 3: Cross multiply
    1,210,281.30x = 1,819,358.55 × 857,736.90
  4. Step 4: Simplify right side
    1,210,281.30x = 1,560,530,962,665.50
  5. Step 5: Solve for x
    x = 1,560,530,962,665.50/1,210,281.30
  6. Step 6: Final answer
    x = 1,289,395.25

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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.