Home / 490,218.90-676,442.64-272,426.52

Finding the Fourth Proportional to 490,218.90, 676,442.64 and 272,426.52

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Solution

The fourth proportional to 490,218.90, 676,442.64 and 272,426.52 is: 375,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,218.90 : 676,442.64 = 272,426.52 : x
  2. Step 2: Convert to fraction form
    490,218.90/676,442.64 = 272,426.52/x
  3. Step 3: Cross multiply
    490,218.90x = 676,442.64 × 272,426.52
  4. Step 4: Simplify right side
    490,218.90x = 184,280,914,394.81
  5. Step 5: Solve for x
    x = 184,280,914,394.81/490,218.90
  6. Step 6: Final answer
    x = 375,915.56

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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.