Home / 764,143.21-1,054,541.34-419,972.92

Finding the Fourth Proportional to 764,143.21, 1,054,541.34 and 419,972.92

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Solution

The fourth proportional to 764,143.21, 1,054,541.34 and 419,972.92 is: 579,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,143.21 : 1,054,541.34 = 419,972.92 : x
  2. Step 2: Convert to fraction form
    764,143.21/1,054,541.34 = 419,972.92/x
  3. Step 3: Cross multiply
    764,143.21x = 1,054,541.34 × 419,972.92
  4. Step 4: Simplify right side
    764,143.21x = 442,878,805,820.51
  5. Step 5: Solve for x
    x = 442,878,805,820.51/764,143.21
  6. Step 6: Final answer
    x = 579,575.66

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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.