Home / 1,620,937.28-2,431,405.92-623,432

Finding the Fourth Proportional to 1,620,937.28, 2,431,405.92 and 623,432

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Solution

The fourth proportional to 1,620,937.28, 2,431,405.92 and 623,432 is: 935,148

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,937.28 : 2,431,405.92 = 623,432 : x
  2. Step 2: Convert to fraction form
    1,620,937.28/2,431,405.92 = 623,432/x
  3. Step 3: Cross multiply
    1,620,937.28x = 2,431,405.92 × 623,432
  4. Step 4: Simplify right side
    1,620,937.28x = 1,515,816,255,517.44
  5. Step 5: Solve for x
    x = 1,515,816,255,517.44/1,620,937.28
  6. Step 6: Final answer
    x = 935,148

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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.