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Finding the Fourth Proportional to 984,477, 1,358,578.80 and 531,768

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Solution

The fourth proportional to 984,477, 1,358,578.80 and 531,768 is: 733,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,477 : 1,358,578.80 = 531,768 : x
  2. Step 2: Convert to fraction form
    984,477/1,358,578.80 = 531,768/x
  3. Step 3: Cross multiply
    984,477x = 1,358,578.80 × 531,768
  4. Step 4: Simplify right side
    984,477x = 722,448,731,318.40
  5. Step 5: Solve for x
    x = 722,448,731,318.40/984,477
  6. Step 6: Final answer
    x = 733,840.13

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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.