Home / 1,370,649.13-1,891,693.65-789,761.01

Finding the Fourth Proportional to 1,370,649.13, 1,891,693.65 and 789,761.01

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Solution

The fourth proportional to 1,370,649.13, 1,891,693.65 and 789,761.01 is: 1,089,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,649.13 : 1,891,693.65 = 789,761.01 : x
  2. Step 2: Convert to fraction form
    1,370,649.13/1,891,693.65 = 789,761.01/x
  3. Step 3: Cross multiply
    1,370,649.13x = 1,891,693.65 × 789,761.01
  4. Step 4: Simplify right side
    1,370,649.13x = 1,493,985,887,634.59
  5. Step 5: Solve for x
    x = 1,493,985,887,634.59/1,370,649.13
  6. Step 6: Final answer
    x = 1,089,984.19

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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.