Home / 489,411.02-674,997.62-404,380.46

Finding the Fourth Proportional to 489,411.02, 674,997.62 and 404,380.46

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Solution

The fourth proportional to 489,411.02, 674,997.62 and 404,380.46 is: 557,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,411.02 : 674,997.62 = 404,380.46 : x
  2. Step 2: Convert to fraction form
    489,411.02/674,997.62 = 404,380.46/x
  3. Step 3: Cross multiply
    489,411.02x = 674,997.62 × 404,380.46
  4. Step 4: Simplify right side
    489,411.02x = 272,955,848,074.51
  5. Step 5: Solve for x
    x = 272,955,848,074.51/489,411.02
  6. Step 6: Final answer
    x = 557,723.13

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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.