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Finding the Fourth Proportional to 702,792.48, 969,601.68 and 400,811.52

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Solution

The fourth proportional to 702,792.48, 969,601.68 and 400,811.52 is: 552,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,792.48 : 969,601.68 = 400,811.52 : x
  2. Step 2: Convert to fraction form
    702,792.48/969,601.68 = 400,811.52/x
  3. Step 3: Cross multiply
    702,792.48x = 969,601.68 × 400,811.52
  4. Step 4: Simplify right side
    702,792.48x = 388,627,523,155.35
  5. Step 5: Solve for x
    x = 388,627,523,155.35/702,792.48
  6. Step 6: Final answer
    x = 552,976.21

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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.