Home / 1,380,239.47-2,070,781.75-706,797.60

Finding the Fourth Proportional to 1,380,239.47, 2,070,781.75 and 706,797.60

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Solution

The fourth proportional to 1,380,239.47, 2,070,781.75 and 706,797.60 is: 1,060,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,239.47 : 2,070,781.75 = 706,797.60 : x
  2. Step 2: Convert to fraction form
    1,380,239.47/2,070,781.75 = 706,797.60/x
  3. Step 3: Cross multiply
    1,380,239.47x = 2,070,781.75 × 706,797.60
  4. Step 4: Simplify right side
    1,380,239.47x = 1,463,623,571,023.80
  5. Step 5: Solve for x
    x = 1,463,623,571,023.80/1,380,239.47
  6. Step 6: Final answer
    x = 1,060,412.78

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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.