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Finding the Fourth Proportional to 408,037.80, 612,056.70 and 314,725.80

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Solution

The fourth proportional to 408,037.80, 612,056.70 and 314,725.80 is: 472,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,037.80 : 612,056.70 = 314,725.80 : x
  2. Step 2: Convert to fraction form
    408,037.80/612,056.70 = 314,725.80/x
  3. Step 3: Cross multiply
    408,037.80x = 612,056.70 × 314,725.80
  4. Step 4: Simplify right side
    408,037.80x = 192,630,034,552.86
  5. Step 5: Solve for x
    x = 192,630,034,552.86/408,037.80
  6. Step 6: Final answer
    x = 472,088.70

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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.