Home / 456,034.20-684,051.30-288,072.60

Finding the Fourth Proportional to 456,034.20, 684,051.30 and 288,072.60

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Solution

The fourth proportional to 456,034.20, 684,051.30 and 288,072.60 is: 432,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,034.20 : 684,051.30 = 288,072.60 : x
  2. Step 2: Convert to fraction form
    456,034.20/684,051.30 = 288,072.60/x
  3. Step 3: Cross multiply
    456,034.20x = 684,051.30 × 288,072.60
  4. Step 4: Simplify right side
    456,034.20x = 197,056,436,524.38
  5. Step 5: Solve for x
    x = 197,056,436,524.38/456,034.20
  6. Step 6: Final answer
    x = 432,108.90

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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.