Home / 812,782.02-1,121,627.34-450,204.69

Finding the Fourth Proportional to 812,782.02, 1,121,627.34 and 450,204.69

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Solution

The fourth proportional to 812,782.02, 1,121,627.34 and 450,204.69 is: 621,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,782.02 : 1,121,627.34 = 450,204.69 : x
  2. Step 2: Convert to fraction form
    812,782.02/1,121,627.34 = 450,204.69/x
  3. Step 3: Cross multiply
    812,782.02x = 1,121,627.34 × 450,204.69
  4. Step 4: Simplify right side
    812,782.02x = 504,961,888,900.23
  5. Step 5: Solve for x
    x = 504,961,888,900.23/812,782.02
  6. Step 6: Final answer
    x = 621,275.91

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Double scale
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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.