Home / 898,682.79-1,240,175.94-490,784.73

Finding the Fourth Proportional to 898,682.79, 1,240,175.94 and 490,784.73

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Solution

The fourth proportional to 898,682.79, 1,240,175.94 and 490,784.73 is: 677,279.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,682.79 : 1,240,175.94 = 490,784.73 : x
  2. Step 2: Convert to fraction form
    898,682.79/1,240,175.94 = 490,784.73/x
  3. Step 3: Cross multiply
    898,682.79x = 1,240,175.94 × 490,784.73
  4. Step 4: Simplify right side
    898,682.79x = 608,659,408,311.03
  5. Step 5: Solve for x
    x = 608,659,408,311.03/898,682.79
  6. Step 6: Final answer
    x = 677,279.48

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1.5x scale

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.