Home / 764,809.86-1,055,569.71-442,697.56

Finding the Fourth Proportional to 764,809.86, 1,055,569.71 and 442,697.56

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Solution

The fourth proportional to 764,809.86, 1,055,569.71 and 442,697.56 is: 610,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,809.86 : 1,055,569.71 = 442,697.56 : x
  2. Step 2: Convert to fraction form
    764,809.86/1,055,569.71 = 442,697.56/x
  3. Step 3: Cross multiply
    764,809.86x = 1,055,569.71 × 442,697.56
  4. Step 4: Simplify right side
    764,809.86x = 467,298,135,026.91
  5. Step 5: Solve for x
    x = 467,298,135,026.91/764,809.86
  6. Step 6: Final answer
    x = 610,999.10

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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.