Home / 686,865.28-1,030,347.11-181,421.22

Finding the Fourth Proportional to 686,865.28, 1,030,347.11 and 181,421.22

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Solution

The fourth proportional to 686,865.28, 1,030,347.11 and 181,421.22 is: 272,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,865.28 : 1,030,347.11 = 181,421.22 : x
  2. Step 2: Convert to fraction form
    686,865.28/1,030,347.11 = 181,421.22/x
  3. Step 3: Cross multiply
    686,865.28x = 1,030,347.11 × 181,421.22
  4. Step 4: Simplify right side
    686,865.28x = 186,926,827,731.08
  5. Step 5: Solve for x
    x = 186,926,827,731.08/686,865.28
  6. Step 6: Final answer
    x = 272,144.82

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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.