Home / 1,369,122.76-1,888,810.86-916,559.56

Finding the Fourth Proportional to 1,369,122.76, 1,888,810.86 and 916,559.56

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Solution

The fourth proportional to 1,369,122.76, 1,888,810.86 and 916,559.56 is: 1,264,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,122.76 : 1,888,810.86 = 916,559.56 : x
  2. Step 2: Convert to fraction form
    1,369,122.76/1,888,810.86 = 916,559.56/x
  3. Step 3: Cross multiply
    1,369,122.76x = 1,888,810.86 × 916,559.56
  4. Step 4: Simplify right side
    1,369,122.76x = 1,731,207,650,764.82
  5. Step 5: Solve for x
    x = 1,731,207,650,764.82/1,369,122.76
  6. Step 6: Final answer
    x = 1,264,464.88

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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.