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Finding the Fourth Proportional to 1,396,378.17, 1,927,003.68 and 792,766.17

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Solution

The fourth proportional to 1,396,378.17, 1,927,003.68 and 792,766.17 is: 1,094,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,378.17 : 1,927,003.68 = 792,766.17 : x
  2. Step 2: Convert to fraction form
    1,396,378.17/1,927,003.68 = 792,766.17/x
  3. Step 3: Cross multiply
    1,396,378.17x = 1,927,003.68 × 792,766.17
  4. Step 4: Simplify right side
    1,396,378.17x = 1,527,663,326,969.51
  5. Step 5: Solve for x
    x = 1,527,663,326,969.51/1,396,378.17
  6. Step 6: Final answer
    x = 1,094,018.34

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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.