Home / 1,392,708.17-2,089,062.26-919,282.81

Finding the Fourth Proportional to 1,392,708.17, 2,089,062.26 and 919,282.81

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Solution

The fourth proportional to 1,392,708.17, 2,089,062.26 and 919,282.81 is: 1,378,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,708.17 : 2,089,062.26 = 919,282.81 : x
  2. Step 2: Convert to fraction form
    1,392,708.17/2,089,062.26 = 919,282.81/x
  3. Step 3: Cross multiply
    1,392,708.17x = 2,089,062.26 × 919,282.81
  4. Step 4: Simplify right side
    1,392,708.17x = 1,920,439,024,637.75
  5. Step 5: Solve for x
    x = 1,920,439,024,637.75/1,392,708.17
  6. Step 6: Final answer
    x = 1,378,924.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.