Home / 489,260.43-674,892.66-307,684.35

Finding the Fourth Proportional to 489,260.43, 674,892.66 and 307,684.35

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Solution

The fourth proportional to 489,260.43, 674,892.66 and 307,684.35 is: 424,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,260.43 : 674,892.66 = 307,684.35 : x
  2. Step 2: Convert to fraction form
    489,260.43/674,892.66 = 307,684.35/x
  3. Step 3: Cross multiply
    489,260.43x = 674,892.66 × 307,684.35
  4. Step 4: Simplify right side
    489,260.43x = 207,653,909,411.87
  5. Step 5: Solve for x
    x = 207,653,909,411.87/489,260.43
  6. Step 6: Final answer
    x = 424,424.08

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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.