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Finding the Fourth Proportional to 984,516, 1,358,632.80 and 531,807

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Solution

The fourth proportional to 984,516, 1,358,632.80 and 531,807 is: 733,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,516 : 1,358,632.80 = 531,807 : x
  2. Step 2: Convert to fraction form
    984,516/1,358,632.80 = 531,807/x
  3. Step 3: Cross multiply
    984,516x = 1,358,632.80 × 531,807
  4. Step 4: Simplify right side
    984,516x = 722,530,433,469.60
  5. Step 5: Solve for x
    x = 722,530,433,469.60/984,516
  6. Step 6: Final answer
    x = 733,894.05

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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.