Home / 873,188.20-1,309,782.30-768,212.20

Finding the Fourth Proportional to 873,188.20, 1,309,782.30 and 768,212.20

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Solution

The fourth proportional to 873,188.20, 1,309,782.30 and 768,212.20 is: 1,152,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,188.20 : 1,309,782.30 = 768,212.20 : x
  2. Step 2: Convert to fraction form
    873,188.20/1,309,782.30 = 768,212.20/x
  3. Step 3: Cross multiply
    873,188.20x = 1,309,782.30 × 768,212.20
  4. Step 4: Simplify right side
    873,188.20x = 1,006,190,742,204.06
  5. Step 5: Solve for x
    x = 1,006,190,742,204.06/873,188.20
  6. Step 6: Final answer
    x = 1,152,318.30

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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.