Home / 1,139,111.28-1,571,956.40-622,866.90

Finding the Fourth Proportional to 1,139,111.28, 1,571,956.40 and 622,866.90

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Solution

The fourth proportional to 1,139,111.28, 1,571,956.40 and 622,866.90 is: 859,546.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,111.28 : 1,571,956.40 = 622,866.90 : x
  2. Step 2: Convert to fraction form
    1,139,111.28/1,571,956.40 = 622,866.90/x
  3. Step 3: Cross multiply
    1,139,111.28x = 1,571,956.40 × 622,866.90
  4. Step 4: Simplify right side
    1,139,111.28x = 979,119,609,803.16
  5. Step 5: Solve for x
    x = 979,119,609,803.16/1,139,111.28
  6. Step 6: Final answer
    x = 859,546.94

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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.