Home / 1,243,232.70-1,866,231.45-770,451.90

Finding the Fourth Proportional to 1,243,232.70, 1,866,231.45 and 770,451.90

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Solution

The fourth proportional to 1,243,232.70, 1,866,231.45 and 770,451.90 is: 1,156,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,232.70 : 1,866,231.45 = 770,451.90 : x
  2. Step 2: Convert to fraction form
    1,243,232.70/1,866,231.45 = 770,451.90/x
  3. Step 3: Cross multiply
    1,243,232.70x = 1,866,231.45 × 770,451.90
  4. Step 4: Simplify right side
    1,243,232.70x = 1,437,841,566,492.26
  5. Step 5: Solve for x
    x = 1,437,841,566,492.26/1,243,232.70
  6. Step 6: Final answer
    x = 1,156,534.55

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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.