Home / 1,042,978.20-1,563,833.70-411,163.80

Finding the Fourth Proportional to 1,042,978.20, 1,563,833.70 and 411,163.80

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Solution

The fourth proportional to 1,042,978.20, 1,563,833.70 and 411,163.80 is: 616,495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,978.20 : 1,563,833.70 = 411,163.80 : x
  2. Step 2: Convert to fraction form
    1,042,978.20/1,563,833.70 = 411,163.80/x
  3. Step 3: Cross multiply
    1,042,978.20x = 1,563,833.70 × 411,163.80
  4. Step 4: Simplify right side
    1,042,978.20x = 642,991,806,660.06
  5. Step 5: Solve for x
    x = 642,991,806,660.06/1,042,978.20
  6. Step 6: Final answer
    x = 616,495.92

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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.