Home / 832,220.74-1,247,227.47-427,396.60

Finding the Fourth Proportional to 832,220.74, 1,247,227.47 and 427,396.60

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Solution

The fourth proportional to 832,220.74, 1,247,227.47 and 427,396.60 is: 640,528.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,220.74 : 1,247,227.47 = 427,396.60 : x
  2. Step 2: Convert to fraction form
    832,220.74/1,247,227.47 = 427,396.60/x
  3. Step 3: Cross multiply
    832,220.74x = 1,247,227.47 × 427,396.60
  4. Step 4: Simplify right side
    832,220.74x = 533,060,780,104.60
  5. Step 5: Solve for x
    x = 533,060,780,104.60/832,220.74
  6. Step 6: Final answer
    x = 640,528.11

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1.5x scale

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.