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Finding the Fourth Proportional to 412,432.80, 618,649.20 and 362,569.20

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Solution

The fourth proportional to 412,432.80, 618,649.20 and 362,569.20 is: 543,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,432.80 : 618,649.20 = 362,569.20 : x
  2. Step 2: Convert to fraction form
    412,432.80/618,649.20 = 362,569.20/x
  3. Step 3: Cross multiply
    412,432.80x = 618,649.20 × 362,569.20
  4. Step 4: Simplify right side
    412,432.80x = 224,303,145,524.64
  5. Step 5: Solve for x
    x = 224,303,145,524.64/412,432.80
  6. Step 6: Final answer
    x = 543,853.80

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