Home / 490,218.90-676,397.14-286,177.22

Finding the Fourth Proportional to 490,218.90, 676,397.14 and 286,177.22

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Solution

The fourth proportional to 490,218.90, 676,397.14 and 286,177.22 is: 394,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,218.90 : 676,397.14 = 286,177.22 : x
  2. Step 2: Convert to fraction form
    490,218.90/676,397.14 = 286,177.22/x
  3. Step 3: Cross multiply
    490,218.90x = 676,397.14 × 286,177.22
  4. Step 4: Simplify right side
    490,218.90x = 193,569,453,141.15
  5. Step 5: Solve for x
    x = 193,569,453,141.15/490,218.90
  6. Step 6: Final answer
    x = 394,863.30

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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.