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Finding the Fourth Proportional to 789,689.73, 1,089,772.02 and 445,598.67

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Solution

The fourth proportional to 789,689.73, 1,089,772.02 and 445,598.67 is: 614,926.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,689.73 : 1,089,772.02 = 445,598.67 : x
  2. Step 2: Convert to fraction form
    789,689.73/1,089,772.02 = 445,598.67/x
  3. Step 3: Cross multiply
    789,689.73x = 1,089,772.02 × 445,598.67
  4. Step 4: Simplify right side
    789,689.73x = 485,600,962,715.21
  5. Step 5: Solve for x
    x = 485,600,962,715.21/789,689.73
  6. Step 6: Final answer
    x = 614,926.27

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Double scale
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1.5x scale

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.