Home / 917,215.25-1,265,873.77-554,641.73

Finding the Fourth Proportional to 917,215.25, 1,265,873.77 and 554,641.73

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Solution

The fourth proportional to 917,215.25, 1,265,873.77 and 554,641.73 is: 765,476.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,215.25 : 1,265,873.77 = 554,641.73 : x
  2. Step 2: Convert to fraction form
    917,215.25/1,265,873.77 = 554,641.73/x
  3. Step 3: Cross multiply
    917,215.25x = 1,265,873.77 × 554,641.73
  4. Step 4: Simplify right side
    917,215.25x = 702,106,416,865.38
  5. Step 5: Solve for x
    x = 702,106,416,865.38/917,215.25
  6. Step 6: Final answer
    x = 765,476.17

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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.