Home / 772,904.04-1,066,735.17-428,850.66

Finding the Fourth Proportional to 772,904.04, 1,066,735.17 and 428,850.66

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Solution

The fourth proportional to 772,904.04, 1,066,735.17 and 428,850.66 is: 591,884.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,904.04 : 1,066,735.17 = 428,850.66 : x
  2. Step 2: Convert to fraction form
    772,904.04/1,066,735.17 = 428,850.66/x
  3. Step 3: Cross multiply
    772,904.04x = 1,066,735.17 × 428,850.66
  4. Step 4: Simplify right side
    772,904.04x = 457,470,085,699.97
  5. Step 5: Solve for x
    x = 457,470,085,699.97/772,904.04
  6. Step 6: Final answer
    x = 591,884.72

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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.