Home / 1,290,946.14-1,781,571.51-717,997.50

Finding the Fourth Proportional to 1,290,946.14, 1,781,571.51 and 717,997.50

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Solution

The fourth proportional to 1,290,946.14, 1,781,571.51 and 717,997.50 is: 990,873.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,946.14 : 1,781,571.51 = 717,997.50 : x
  2. Step 2: Convert to fraction form
    1,290,946.14/1,781,571.51 = 717,997.50/x
  3. Step 3: Cross multiply
    1,290,946.14x = 1,781,571.51 × 717,997.50
  4. Step 4: Simplify right side
    1,290,946.14x = 1,279,163,890,251.23
  5. Step 5: Solve for x
    x = 1,279,163,890,251.23/1,290,946.14
  6. Step 6: Final answer
    x = 990,873.17

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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.