Home / 1,235,707.80-1,854,728.10-763,315.80

Finding the Fourth Proportional to 1,235,707.80, 1,854,728.10 and 763,315.80

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Solution

The fourth proportional to 1,235,707.80, 1,854,728.10 and 763,315.80 is: 1,145,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,707.80 : 1,854,728.10 = 763,315.80 : x
  2. Step 2: Convert to fraction form
    1,235,707.80/1,854,728.10 = 763,315.80/x
  3. Step 3: Cross multiply
    1,235,707.80x = 1,854,728.10 × 763,315.80
  4. Step 4: Simplify right side
    1,235,707.80x = 1,415,743,263,433.98
  5. Step 5: Solve for x
    x = 1,415,743,263,433.98/1,235,707.80
  6. Step 6: Final answer
    x = 1,145,694.20

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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.