Home / 1,029,559.78-1,420,311.90-647,797.06

Finding the Fourth Proportional to 1,029,559.78, 1,420,311.90 and 647,797.06

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Solution

The fourth proportional to 1,029,559.78, 1,420,311.90 and 647,797.06 is: 893,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,559.78 : 1,420,311.90 = 647,797.06 : x
  2. Step 2: Convert to fraction form
    1,029,559.78/1,420,311.90 = 647,797.06/x
  3. Step 3: Cross multiply
    1,029,559.78x = 1,420,311.90 × 647,797.06
  4. Step 4: Simplify right side
    1,029,559.78x = 920,073,873,103.01
  5. Step 5: Solve for x
    x = 920,073,873,103.01/1,029,559.78
  6. Step 6: Final answer
    x = 893,657.55

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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.