Home / 815,280.60-1,217,430.99-665,817.60

Finding the Fourth Proportional to 815,280.60, 1,217,430.99 and 665,817.60

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Solution

The fourth proportional to 815,280.60, 1,217,430.99 and 665,817.60 is: 994,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,280.60 : 1,217,430.99 = 665,817.60 : x
  2. Step 2: Convert to fraction form
    815,280.60/1,217,430.99 = 665,817.60/x
  3. Step 3: Cross multiply
    815,280.60x = 1,217,430.99 × 665,817.60
  4. Step 4: Simplify right side
    815,280.60x = 810,586,979,927.42
  5. Step 5: Solve for x
    x = 810,586,979,927.42/815,280.60
  6. Step 6: Final answer
    x = 994,242.94

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.