Home / 1,389,438.38-1,917,424.96-753,534.38

Finding the Fourth Proportional to 1,389,438.38, 1,917,424.96 and 753,534.38

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Solution

The fourth proportional to 1,389,438.38, 1,917,424.96 and 753,534.38 is: 1,039,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,438.38 : 1,917,424.96 = 753,534.38 : x
  2. Step 2: Convert to fraction form
    1,389,438.38/1,917,424.96 = 753,534.38/x
  3. Step 3: Cross multiply
    1,389,438.38x = 1,917,424.96 × 753,534.38
  4. Step 4: Simplify right side
    1,389,438.38x = 1,444,845,628,430.12
  5. Step 5: Solve for x
    x = 1,444,845,628,430.12/1,389,438.38
  6. Step 6: Final answer
    x = 1,039,877.44

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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.