Home / 861,622.61-1,291,835.41-381,588.83

Finding the Fourth Proportional to 861,622.61, 1,291,835.41 and 381,588.83

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Solution

The fourth proportional to 861,622.61, 1,291,835.41 and 381,588.83 is: 572,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,622.61 : 1,291,835.41 = 381,588.83 : x
  2. Step 2: Convert to fraction form
    861,622.61/1,291,835.41 = 381,588.83/x
  3. Step 3: Cross multiply
    861,622.61x = 1,291,835.41 × 381,588.83
  4. Step 4: Simplify right side
    861,622.61x = 492,949,954,287.35
  5. Step 5: Solve for x
    x = 492,949,954,287.35/861,622.61
  6. Step 6: Final answer
    x = 572,118.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.