Home / 897,781.37-1,238,968.16-489,905.59

Finding the Fourth Proportional to 897,781.37, 1,238,968.16 and 489,905.59

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Solution

The fourth proportional to 897,781.37, 1,238,968.16 and 489,905.59 is: 676,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,781.37 : 1,238,968.16 = 489,905.59 : x
  2. Step 2: Convert to fraction form
    897,781.37/1,238,968.16 = 489,905.59/x
  3. Step 3: Cross multiply
    897,781.37x = 1,238,968.16 × 489,905.59
  4. Step 4: Simplify right side
    897,781.37x = 606,977,430,891.74
  5. Step 5: Solve for x
    x = 606,977,430,891.74/897,781.37
  6. Step 6: Final answer
    x = 676,086.02

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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.