Home / 812,374.14-1,120,723.36-489,905.04

Finding the Fourth Proportional to 812,374.14, 1,120,723.36 and 489,905.04

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Solution

The fourth proportional to 812,374.14, 1,120,723.36 and 489,905.04 is: 675,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,374.14 : 1,120,723.36 = 489,905.04 : x
  2. Step 2: Convert to fraction form
    812,374.14/1,120,723.36 = 489,905.04/x
  3. Step 3: Cross multiply
    812,374.14x = 1,120,723.36 × 489,905.04
  4. Step 4: Simplify right side
    812,374.14x = 549,048,022,509.73
  5. Step 5: Solve for x
    x = 549,048,022,509.73/812,374.14
  6. Step 6: Final answer
    x = 675,856.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.