Home / 773,087.47-1,066,824.55-428,919.73

Finding the Fourth Proportional to 773,087.47, 1,066,824.55 and 428,919.73

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Solution

The fourth proportional to 773,087.47, 1,066,824.55 and 428,919.73 is: 591,889.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,087.47 : 1,066,824.55 = 428,919.73 : x
  2. Step 2: Convert to fraction form
    773,087.47/1,066,824.55 = 428,919.73/x
  3. Step 3: Cross multiply
    773,087.47x = 1,066,824.55 × 428,919.73
  4. Step 4: Simplify right side
    773,087.47x = 457,582,095,812.46
  5. Step 5: Solve for x
    x = 457,582,095,812.46/773,087.47
  6. Step 6: Final answer
    x = 591,889.17

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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.