Home / 1,289,422.40-1,933,672.80-448,001.60

Finding the Fourth Proportional to 1,289,422.40, 1,933,672.80 and 448,001.60

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Solution

The fourth proportional to 1,289,422.40, 1,933,672.80 and 448,001.60 is: 671,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,422.40 : 1,933,672.80 = 448,001.60 : x
  2. Step 2: Convert to fraction form
    1,289,422.40/1,933,672.80 = 448,001.60/x
  3. Step 3: Cross multiply
    1,289,422.40x = 1,933,672.80 × 448,001.60
  4. Step 4: Simplify right side
    1,289,422.40x = 866,288,508,276.48
  5. Step 5: Solve for x
    x = 866,288,508,276.48/1,289,422.40
  6. Step 6: Final answer
    x = 671,842.30

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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.