Home / 1,138,421.20-1,709,600.10-606,980.20

Finding the Fourth Proportional to 1,138,421.20, 1,709,600.10 and 606,980.20

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Solution

The fourth proportional to 1,138,421.20, 1,709,600.10 and 606,980.20 is: 911,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,421.20 : 1,709,600.10 = 606,980.20 : x
  2. Step 2: Convert to fraction form
    1,138,421.20/1,709,600.10 = 606,980.20/x
  3. Step 3: Cross multiply
    1,138,421.20x = 1,709,600.10 × 606,980.20
  4. Step 4: Simplify right side
    1,138,421.20x = 1,037,693,410,618.02
  5. Step 5: Solve for x
    x = 1,037,693,410,618.02/1,138,421.20
  6. Step 6: Final answer
    x = 911,519.75

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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.