Home / 676,739.70-1,014,002.15-409,690.80

Finding the Fourth Proportional to 676,739.70, 1,014,002.15 and 409,690.80

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Solution

The fourth proportional to 676,739.70, 1,014,002.15 and 409,690.80 is: 613,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,739.70 : 1,014,002.15 = 409,690.80 : x
  2. Step 2: Convert to fraction form
    676,739.70/1,014,002.15 = 409,690.80/x
  3. Step 3: Cross multiply
    676,739.70x = 1,014,002.15 × 409,690.80
  4. Step 4: Simplify right side
    676,739.70x = 415,427,349,986.77
  5. Step 5: Solve for x
    x = 415,427,349,986.77/676,739.70
  6. Step 6: Final answer
    x = 613,865.79

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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.