Home / 1,587,846.60-2,191,190.40-862,677.90

Finding the Fourth Proportional to 1,587,846.60, 2,191,190.40 and 862,677.90

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Solution

The fourth proportional to 1,587,846.60, 2,191,190.40 and 862,677.90 is: 1,190,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,846.60 : 2,191,190.40 = 862,677.90 : x
  2. Step 2: Convert to fraction form
    1,587,846.60/2,191,190.40 = 862,677.90/x
  3. Step 3: Cross multiply
    1,587,846.60x = 2,191,190.40 × 862,677.90
  4. Step 4: Simplify right side
    1,587,846.60x = 1,890,291,532,772.16
  5. Step 5: Solve for x
    x = 1,890,291,532,772.16/1,587,846.60
  6. Step 6: Final answer
    x = 1,190,474.91

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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.