Home / 438,276.48-658,979.64-403,634.40

Finding the Fourth Proportional to 438,276.48, 658,979.64 and 403,634.40

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Solution

The fourth proportional to 438,276.48, 658,979.64 and 403,634.40 is: 606,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,276.48 : 658,979.64 = 403,634.40 : x
  2. Step 2: Convert to fraction form
    438,276.48/658,979.64 = 403,634.40/x
  3. Step 3: Cross multiply
    438,276.48x = 658,979.64 × 403,634.40
  4. Step 4: Simplify right side
    438,276.48x = 265,986,851,603.62
  5. Step 5: Solve for x
    x = 265,986,851,603.62/438,276.48
  6. Step 6: Final answer
    x = 606,892.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.