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Finding the Fourth Proportional to 388,440.20, 544,922.20 and 388,440.20

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Solution

The fourth proportional to 388,440.20, 544,922.20 and 388,440.20 is: 544,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,440.20 : 544,922.20 = 388,440.20 : x
  2. Step 2: Convert to fraction form
    388,440.20/544,922.20 = 388,440.20/x
  3. Step 3: Cross multiply
    388,440.20x = 544,922.20 × 388,440.20
  4. Step 4: Simplify right side
    388,440.20x = 211,669,688,352.44
  5. Step 5: Solve for x
    x = 211,669,688,352.44/388,440.20
  6. Step 6: Final answer
    x = 544,922.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.