Home / 764,055.05-1,054,344.95-419,883.56

Finding the Fourth Proportional to 764,055.05, 1,054,344.95 and 419,883.56

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Solution

The fourth proportional to 764,055.05, 1,054,344.95 and 419,883.56 is: 579,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,055.05 : 1,054,344.95 = 419,883.56 : x
  2. Step 2: Convert to fraction form
    764,055.05/1,054,344.95 = 419,883.56/x
  3. Step 3: Cross multiply
    764,055.05x = 1,054,344.95 × 419,883.56
  4. Step 4: Simplify right side
    764,055.05x = 442,702,117,523.77
  5. Step 5: Solve for x
    x = 442,702,117,523.77/764,055.05
  6. Step 6: Final answer
    x = 579,411.29

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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.