Home / 456,052.20-684,078.30-288,090.60

Finding the Fourth Proportional to 456,052.20, 684,078.30 and 288,090.60

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Solution

The fourth proportional to 456,052.20, 684,078.30 and 288,090.60 is: 432,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,052.20 : 684,078.30 = 288,090.60 : x
  2. Step 2: Convert to fraction form
    456,052.20/684,078.30 = 288,090.60/x
  3. Step 3: Cross multiply
    456,052.20x = 684,078.30 × 288,090.60
  4. Step 4: Simplify right side
    456,052.20x = 197,076,527,893.98
  5. Step 5: Solve for x
    x = 197,076,527,893.98/456,052.20
  6. Step 6: Final answer
    x = 432,135.90

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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.