Home / 989,489.50-1,365,495.93-559,760.50

Finding the Fourth Proportional to 989,489.50, 1,365,495.93 and 559,760.50

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Solution

The fourth proportional to 989,489.50, 1,365,495.93 and 559,760.50 is: 772,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,489.50 : 1,365,495.93 = 559,760.50 : x
  2. Step 2: Convert to fraction form
    989,489.50/1,365,495.93 = 559,760.50/x
  3. Step 3: Cross multiply
    989,489.50x = 1,365,495.93 × 559,760.50
  4. Step 4: Simplify right side
    989,489.50x = 764,350,684,524.77
  5. Step 5: Solve for x
    x = 764,350,684,524.77/989,489.50
  6. Step 6: Final answer
    x = 772,469.73

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Why These Related Problems?

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