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Finding the Fourth Proportional to 984,572, 1,358,709.36 and 531,863

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Solution

The fourth proportional to 984,572, 1,358,709.36 and 531,863 is: 733,970.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,572 : 1,358,709.36 = 531,863 : x
  2. Step 2: Convert to fraction form
    984,572/1,358,709.36 = 531,863/x
  3. Step 3: Cross multiply
    984,572x = 1,358,709.36 × 531,863
  4. Step 4: Simplify right side
    984,572x = 722,647,236,337.68
  5. Step 5: Solve for x
    x = 722,647,236,337.68/984,572
  6. Step 6: Final answer
    x = 733,970.94

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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.