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Finding the Fourth Proportional to 499,550.87, 689,378.72 and 270,106.53

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Solution

The fourth proportional to 499,550.87, 689,378.72 and 270,106.53 is: 372,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,550.87 : 689,378.72 = 270,106.53 : x
  2. Step 2: Convert to fraction form
    499,550.87/689,378.72 = 270,106.53/x
  3. Step 3: Cross multiply
    499,550.87x = 689,378.72 × 270,106.53
  4. Step 4: Simplify right side
    499,550.87x = 186,205,693,915.04
  5. Step 5: Solve for x
    x = 186,205,693,915.04/499,550.87
  6. Step 6: Final answer
    x = 372,746.21

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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.