Home / 1,139,859.39-1,572,959.48-656,442.75

Finding the Fourth Proportional to 1,139,859.39, 1,572,959.48 and 656,442.75

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Solution

The fourth proportional to 1,139,859.39, 1,572,959.48 and 656,442.75 is: 905,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,859.39 : 1,572,959.48 = 656,442.75 : x
  2. Step 2: Convert to fraction form
    1,139,859.39/1,572,959.48 = 656,442.75/x
  3. Step 3: Cross multiply
    1,139,859.39x = 1,572,959.48 × 656,442.75
  4. Step 4: Simplify right side
    1,139,859.39x = 1,032,557,843,407.56
  5. Step 5: Solve for x
    x = 1,032,557,843,407.56/1,139,859.39
  6. Step 6: Final answer
    x = 905,864.23

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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.