Home / 686,790.68-1,030,170.30-181,387.28

Finding the Fourth Proportional to 686,790.68, 1,030,170.30 and 181,387.28

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Solution

The fourth proportional to 686,790.68, 1,030,170.30 and 181,387.28 is: 272,076.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,790.68 : 1,030,170.30 = 181,387.28 : x
  2. Step 2: Convert to fraction form
    686,790.68/1,030,170.30 = 181,387.28/x
  3. Step 3: Cross multiply
    686,790.68x = 1,030,170.30 × 181,387.28
  4. Step 4: Simplify right side
    686,790.68x = 186,859,788,653.78
  5. Step 5: Solve for x
    x = 186,859,788,653.78/686,790.68
  6. Step 6: Final answer
    x = 272,076.77

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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.