Home / 772,984.92-1,066,720.42-428,820.84

Finding the Fourth Proportional to 772,984.92, 1,066,720.42 and 428,820.84

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Solution

The fourth proportional to 772,984.92, 1,066,720.42 and 428,820.84 is: 591,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,984.92 : 1,066,720.42 = 428,820.84 : x
  2. Step 2: Convert to fraction form
    772,984.92/1,066,720.42 = 428,820.84/x
  3. Step 3: Cross multiply
    772,984.92x = 1,066,720.42 × 428,820.84
  4. Step 4: Simplify right side
    772,984.92x = 457,431,946,549.55
  5. Step 5: Solve for x
    x = 457,431,946,549.55/772,984.92
  6. Step 6: Final answer
    x = 591,773.44

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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.