Home / 767,906.64-1,059,637.68-428,396.76

Finding the Fourth Proportional to 767,906.64, 1,059,637.68 and 428,396.76

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Solution

The fourth proportional to 767,906.64, 1,059,637.68 and 428,396.76 is: 591,146.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,906.64 : 1,059,637.68 = 428,396.76 : x
  2. Step 2: Convert to fraction form
    767,906.64/1,059,637.68 = 428,396.76/x
  3. Step 3: Cross multiply
    767,906.64x = 1,059,637.68 × 428,396.76
  4. Step 4: Simplify right side
    767,906.64x = 453,945,348,885.92
  5. Step 5: Solve for x
    x = 453,945,348,885.92/767,906.64
  6. Step 6: Final answer
    x = 591,146.53

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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.