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Finding the Fourth Proportional to 538,809.40, 809,088.90 and 362,099.80

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Solution

The fourth proportional to 538,809.40, 809,088.90 and 362,099.80 is: 543,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,809.40 : 809,088.90 = 362,099.80 : x
  2. Step 2: Convert to fraction form
    538,809.40/809,088.90 = 362,099.80/x
  3. Step 3: Cross multiply
    538,809.40x = 809,088.90 × 362,099.80
  4. Step 4: Simplify right side
    538,809.40x = 292,970,928,872.22
  5. Step 5: Solve for x
    x = 292,970,928,872.22/538,809.40
  6. Step 6: Final answer
    x = 543,737.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.