Home / 780,322.16-1,170,483.24-219,356.66

Finding the Fourth Proportional to 780,322.16, 1,170,483.24 and 219,356.66

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Solution

The fourth proportional to 780,322.16, 1,170,483.24 and 219,356.66 is: 329,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,322.16 : 1,170,483.24 = 219,356.66 : x
  2. Step 2: Convert to fraction form
    780,322.16/1,170,483.24 = 219,356.66/x
  3. Step 3: Cross multiply
    780,322.16x = 1,170,483.24 × 219,356.66
  4. Step 4: Simplify right side
    780,322.16x = 256,753,288,259.96
  5. Step 5: Solve for x
    x = 256,753,288,259.96/780,322.16
  6. Step 6: Final answer
    x = 329,034.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.