Home / 1,421,726.76-1,961,983.02-777,149.52

Finding the Fourth Proportional to 1,421,726.76, 1,961,983.02 and 777,149.52

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Solution

The fourth proportional to 1,421,726.76, 1,961,983.02 and 777,149.52 is: 1,072,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,726.76 : 1,961,983.02 = 777,149.52 : x
  2. Step 2: Convert to fraction form
    1,421,726.76/1,961,983.02 = 777,149.52/x
  3. Step 3: Cross multiply
    1,421,726.76x = 1,961,983.02 × 777,149.52
  4. Step 4: Simplify right side
    1,421,726.76x = 1,524,754,162,241.15
  5. Step 5: Solve for x
    x = 1,524,754,162,241.15/1,421,726.76
  6. Step 6: Final answer
    x = 1,072,466.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.