Home / 1,385,489.98-1,911,807.24-773,676.74

Finding the Fourth Proportional to 1,385,489.98, 1,911,807.24 and 773,676.74

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Solution

The fourth proportional to 1,385,489.98, 1,911,807.24 and 773,676.74 is: 1,067,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,489.98 : 1,911,807.24 = 773,676.74 : x
  2. Step 2: Convert to fraction form
    1,385,489.98/1,911,807.24 = 773,676.74/x
  3. Step 3: Cross multiply
    1,385,489.98x = 1,911,807.24 × 773,676.74
  4. Step 4: Simplify right side
    1,385,489.98x = 1,479,120,792,951.60
  5. Step 5: Solve for x
    x = 1,479,120,792,951.60/1,385,489.98
  6. Step 6: Final answer
    x = 1,067,579.57

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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.