Home / 686,868.47-1,030,351.89-181,424.40

Finding the Fourth Proportional to 686,868.47, 1,030,351.89 and 181,424.40

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Solution

The fourth proportional to 686,868.47, 1,030,351.89 and 181,424.40 is: 272,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,868.47 : 1,030,351.89 = 181,424.40 : x
  2. Step 2: Convert to fraction form
    686,868.47/1,030,351.89 = 181,424.40/x
  3. Step 3: Cross multiply
    686,868.47x = 1,030,351.89 × 181,424.40
  4. Step 4: Simplify right side
    686,868.47x = 186,930,973,432.12
  5. Step 5: Solve for x
    x = 186,930,973,432.12/686,868.47
  6. Step 6: Final answer
    x = 272,149.59

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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.