Home / 920,174.75-1,269,816.38-512,276.60

Finding the Fourth Proportional to 920,174.75, 1,269,816.38 and 512,276.60

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Solution

The fourth proportional to 920,174.75, 1,269,816.38 and 512,276.60 is: 706,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,174.75 : 1,269,816.38 = 512,276.60 : x
  2. Step 2: Convert to fraction form
    920,174.75/1,269,816.38 = 512,276.60/x
  3. Step 3: Cross multiply
    920,174.75x = 1,269,816.38 × 512,276.60
  4. Step 4: Simplify right side
    920,174.75x = 650,497,215,209.33
  5. Step 5: Solve for x
    x = 650,497,215,209.33/920,174.75
  6. Step 6: Final answer
    x = 706,927.91

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1.5x scale

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.