Home / 772,712.97-1,066,347.02-428,581.03

Finding the Fourth Proportional to 772,712.97, 1,066,347.02 and 428,581.03

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Solution

The fourth proportional to 772,712.97, 1,066,347.02 and 428,581.03 is: 591,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,712.97 : 1,066,347.02 = 428,581.03 : x
  2. Step 2: Convert to fraction form
    772,712.97/1,066,347.02 = 428,581.03/x
  3. Step 3: Cross multiply
    772,712.97x = 1,066,347.02 × 428,581.03
  4. Step 4: Simplify right side
    772,712.97x = 457,016,096,694.39
  5. Step 5: Solve for x
    x = 457,016,096,694.39/772,712.97
  6. Step 6: Final answer
    x = 591,443.54

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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.