Home / 832,219.74-1,247,225.97-427,395.60

Finding the Fourth Proportional to 832,219.74, 1,247,225.97 and 427,395.60

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Solution

The fourth proportional to 832,219.74, 1,247,225.97 and 427,395.60 is: 640,526.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,219.74 : 1,247,225.97 = 427,395.60 : x
  2. Step 2: Convert to fraction form
    832,219.74/1,247,225.97 = 427,395.60/x
  3. Step 3: Cross multiply
    832,219.74x = 1,247,225.97 × 427,395.60
  4. Step 4: Simplify right side
    832,219.74x = 533,058,891,783.73
  5. Step 5: Solve for x
    x = 533,058,891,783.73/832,219.74
  6. Step 6: Final answer
    x = 640,526.61

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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.