Home / 790,166.28-1,185,438.06-257,687.76

Finding the Fourth Proportional to 790,166.28, 1,185,438.06 and 257,687.76

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Solution

The fourth proportional to 790,166.28, 1,185,438.06 and 257,687.76 is: 386,593.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,166.28 : 1,185,438.06 = 257,687.76 : x
  2. Step 2: Convert to fraction form
    790,166.28/1,185,438.06 = 257,687.76/x
  3. Step 3: Cross multiply
    790,166.28x = 1,185,438.06 × 257,687.76
  4. Step 4: Simplify right side
    790,166.28x = 305,472,878,300.15
  5. Step 5: Solve for x
    x = 305,472,878,300.15/790,166.28
  6. Step 6: Final answer
    x = 386,593.16

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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.