Home / 1,240,520.70-1,859,796.90-679,555.20

Finding the Fourth Proportional to 1,240,520.70, 1,859,796.90 and 679,555.20

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Solution

The fourth proportional to 1,240,520.70, 1,859,796.90 and 679,555.20 is: 1,018,793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,520.70 : 1,859,796.90 = 679,555.20 : x
  2. Step 2: Convert to fraction form
    1,240,520.70/1,859,796.90 = 679,555.20/x
  3. Step 3: Cross multiply
    1,240,520.70x = 1,859,796.90 × 679,555.20
  4. Step 4: Simplify right side
    1,240,520.70x = 1,263,834,654,338.88
  5. Step 5: Solve for x
    x = 1,263,834,654,338.88/1,240,520.70
  6. Step 6: Final answer
    x = 1,018,793.68

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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.