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Finding the Fourth Proportional to 548,063.47, 755,639.34 and 419,160.07

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Solution

The fourth proportional to 548,063.47, 755,639.34 and 419,160.07 is: 577,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,063.47 : 755,639.34 = 419,160.07 : x
  2. Step 2: Convert to fraction form
    548,063.47/755,639.34 = 419,160.07/x
  3. Step 3: Cross multiply
    548,063.47x = 755,639.34 × 419,160.07
  4. Step 4: Simplify right side
    548,063.47x = 316,733,836,760.06
  5. Step 5: Solve for x
    x = 316,733,836,760.06/548,063.47
  6. Step 6: Final answer
    x = 577,914.52

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1.5x scale

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.