Home / 1,131,870.51-1,561,948.72-622,572.89

Finding the Fourth Proportional to 1,131,870.51, 1,561,948.72 and 622,572.89

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Solution

The fourth proportional to 1,131,870.51, 1,561,948.72 and 622,572.89 is: 859,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,870.51 : 1,561,948.72 = 622,572.89 : x
  2. Step 2: Convert to fraction form
    1,131,870.51/1,561,948.72 = 622,572.89/x
  3. Step 3: Cross multiply
    1,131,870.51x = 1,561,948.72 × 622,572.89
  4. Step 4: Simplify right side
    1,131,870.51x = 972,426,919,276.03
  5. Step 5: Solve for x
    x = 972,426,919,276.03/1,131,870.51
  6. Step 6: Final answer
    x = 859,132.66

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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.