Home / 1,138,405.20-1,709,576.10-606,964.20

Finding the Fourth Proportional to 1,138,405.20, 1,709,576.10 and 606,964.20

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Solution

The fourth proportional to 1,138,405.20, 1,709,576.10 and 606,964.20 is: 911,495.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,405.20 : 1,709,576.10 = 606,964.20 : x
  2. Step 2: Convert to fraction form
    1,138,405.20/1,709,576.10 = 606,964.20/x
  3. Step 3: Cross multiply
    1,138,405.20x = 1,709,576.10 × 606,964.20
  4. Step 4: Simplify right side
    1,138,405.20x = 1,037,651,489,875.62
  5. Step 5: Solve for x
    x = 1,037,651,489,875.62/1,138,405.20
  6. Step 6: Final answer
    x = 911,495.74

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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.