Home / 1,427,787-1,970,310.02-815,900.85

Finding the Fourth Proportional to 1,427,787, 1,970,310.02 and 815,900.85

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Solution

The fourth proportional to 1,427,787, 1,970,310.02 and 815,900.85 is: 1,125,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,787 : 1,970,310.02 = 815,900.85 : x
  2. Step 2: Convert to fraction form
    1,427,787/1,970,310.02 = 815,900.85/x
  3. Step 3: Cross multiply
    1,427,787x = 1,970,310.02 × 815,900.85
  4. Step 4: Simplify right side
    1,427,787x = 1,607,577,616,002.01
  5. Step 5: Solve for x
    x = 1,607,577,616,002.01/1,427,787
  6. Step 6: Final answer
    x = 1,125,922.58

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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.