Home / 490,218.84-676,397.06-286,177.16

Finding the Fourth Proportional to 490,218.84, 676,397.06 and 286,177.16

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Solution

The fourth proportional to 490,218.84, 676,397.06 and 286,177.16 is: 394,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,218.84 : 676,397.06 = 286,177.16 : x
  2. Step 2: Convert to fraction form
    490,218.84/676,397.06 = 286,177.16/x
  3. Step 3: Cross multiply
    490,218.84x = 676,397.06 × 286,177.16
  4. Step 4: Simplify right side
    490,218.84x = 193,569,388,232.26
  5. Step 5: Solve for x
    x = 193,569,388,232.26/490,218.84
  6. Step 6: Final answer
    x = 394,863.22

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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.