Home / 898,858.22-1,240,416.97-490,960.32

Finding the Fourth Proportional to 898,858.22, 1,240,416.97 and 490,960.32

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Solution

The fourth proportional to 898,858.22, 1,240,416.97 and 490,960.32 is: 677,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,858.22 : 1,240,416.97 = 490,960.32 : x
  2. Step 2: Convert to fraction form
    898,858.22/1,240,416.97 = 490,960.32/x
  3. Step 3: Cross multiply
    898,858.22x = 1,240,416.97 × 490,960.32
  4. Step 4: Simplify right side
    898,858.22x = 608,995,503,867.74
  5. Step 5: Solve for x
    x = 608,995,503,867.74/898,858.22
  6. Step 6: Final answer
    x = 677,521.20

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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.