Home / 1,587,955.28-2,191,351.74-862,814.12

Finding the Fourth Proportional to 1,587,955.28, 2,191,351.74 and 862,814.12

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Solution

The fourth proportional to 1,587,955.28, 2,191,351.74 and 862,814.12 is: 1,190,669.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,955.28 : 2,191,351.74 = 862,814.12 : x
  2. Step 2: Convert to fraction form
    1,587,955.28/2,191,351.74 = 862,814.12/x
  3. Step 3: Cross multiply
    1,587,955.28x = 2,191,351.74 × 862,814.12
  4. Step 4: Simplify right side
    1,587,955.28x = 1,890,729,223,158.57
  5. Step 5: Solve for x
    x = 1,890,729,223,158.57/1,587,955.28
  6. Step 6: Final answer
    x = 1,190,669.06

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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.