Home / 768,284.20-1,152,426.30-207,317.80

Finding the Fourth Proportional to 768,284.20, 1,152,426.30 and 207,317.80

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Solution

The fourth proportional to 768,284.20, 1,152,426.30 and 207,317.80 is: 310,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,284.20 : 1,152,426.30 = 207,317.80 : x
  2. Step 2: Convert to fraction form
    768,284.20/1,152,426.30 = 207,317.80/x
  3. Step 3: Cross multiply
    768,284.20x = 1,152,426.30 × 207,317.80
  4. Step 4: Simplify right side
    768,284.20x = 238,918,485,178.14
  5. Step 5: Solve for x
    x = 238,918,485,178.14/768,284.20
  6. Step 6: Final answer
    x = 310,976.70

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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.