Home / 492,887.09-680,252.27-288,988.22

Finding the Fourth Proportional to 492,887.09, 680,252.27 and 288,988.22

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Solution

The fourth proportional to 492,887.09, 680,252.27 and 288,988.22 is: 398,843.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,887.09 : 680,252.27 = 288,988.22 : x
  2. Step 2: Convert to fraction form
    492,887.09/680,252.27 = 288,988.22/x
  3. Step 3: Cross multiply
    492,887.09x = 680,252.27 × 288,988.22
  4. Step 4: Simplify right side
    492,887.09x = 196,584,892,658.26
  5. Step 5: Solve for x
    x = 196,584,892,658.26/492,887.09
  6. Step 6: Final answer
    x = 398,843.66

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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.