Home / 1,392,997.10-1,922,744.18-909,637.29

Finding the Fourth Proportional to 1,392,997.10, 1,922,744.18 and 909,637.29

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Solution

The fourth proportional to 1,392,997.10, 1,922,744.18 and 909,637.29 is: 1,255,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,997.10 : 1,922,744.18 = 909,637.29 : x
  2. Step 2: Convert to fraction form
    1,392,997.10/1,922,744.18 = 909,637.29/x
  3. Step 3: Cross multiply
    1,392,997.10x = 1,922,744.18 × 909,637.29
  4. Step 4: Simplify right side
    1,392,997.10x = 1,748,999,807,532.57
  5. Step 5: Solve for x
    x = 1,748,999,807,532.57/1,392,997.10
  6. Step 6: Final answer
    x = 1,255,566.01

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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.