Home / 1,458,439.80-2,188,315.80-512,489.40

Finding the Fourth Proportional to 1,458,439.80, 2,188,315.80 and 512,489.40

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Solution

The fourth proportional to 1,458,439.80, 2,188,315.80 and 512,489.40 is: 768,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,439.80 : 2,188,315.80 = 512,489.40 : x
  2. Step 2: Convert to fraction form
    1,458,439.80/2,188,315.80 = 512,489.40/x
  3. Step 3: Cross multiply
    1,458,439.80x = 2,188,315.80 × 512,489.40
  4. Step 4: Simplify right side
    1,458,439.80x = 1,121,488,651,352.52
  5. Step 5: Solve for x
    x = 1,121,488,651,352.52/1,458,439.80
  6. Step 6: Final answer
    x = 768,964.65

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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.