Home / 897,802.77-1,238,997.71-489,927.06

Finding the Fourth Proportional to 897,802.77, 1,238,997.71 and 489,927.06

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Solution

The fourth proportional to 897,802.77, 1,238,997.71 and 489,927.06 is: 676,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,802.77 : 1,238,997.71 = 489,927.06 : x
  2. Step 2: Convert to fraction form
    897,802.77/1,238,997.71 = 489,927.06/x
  3. Step 3: Cross multiply
    897,802.77x = 1,238,997.71 × 489,927.06
  4. Step 4: Simplify right side
    897,802.77x = 607,018,505,407.03
  5. Step 5: Solve for x
    x = 607,018,505,407.03/897,802.77
  6. Step 6: Final answer
    x = 676,115.65

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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.