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Finding the Fourth Proportional to 683,438.40, 1,024,850.40 and 262,574.40

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Solution

The fourth proportional to 683,438.40, 1,024,850.40 and 262,574.40 is: 393,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,438.40 : 1,024,850.40 = 262,574.40 : x
  2. Step 2: Convert to fraction form
    683,438.40/1,024,850.40 = 262,574.40/x
  3. Step 3: Cross multiply
    683,438.40x = 1,024,850.40 × 262,574.40
  4. Step 4: Simplify right side
    683,438.40x = 269,099,478,869.76
  5. Step 5: Solve for x
    x = 269,099,478,869.76/683,438.40
  6. Step 6: Final answer
    x = 393,743.57

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1.5x scale

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.