Home / 1,297,766.48-1,945,985.16-690,899.54

Finding the Fourth Proportional to 1,297,766.48, 1,945,985.16 and 690,899.54

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Solution

The fourth proportional to 1,297,766.48, 1,945,985.16 and 690,899.54 is: 1,035,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,766.48 : 1,945,985.16 = 690,899.54 : x
  2. Step 2: Convert to fraction form
    1,297,766.48/1,945,985.16 = 690,899.54/x
  3. Step 3: Cross multiply
    1,297,766.48x = 1,945,985.16 × 690,899.54
  4. Step 4: Simplify right side
    1,297,766.48x = 1,344,480,251,890.83
  5. Step 5: Solve for x
    x = 1,344,480,251,890.83/1,297,766.48
  6. Step 6: Final answer
    x = 1,035,995.51

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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.