Home / 687,784.56-1,031,206.23-350,171.88

Finding the Fourth Proportional to 687,784.56, 1,031,206.23 and 350,171.88

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Solution

The fourth proportional to 687,784.56, 1,031,206.23 and 350,171.88 is: 525,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,784.56 : 1,031,206.23 = 350,171.88 : x
  2. Step 2: Convert to fraction form
    687,784.56/1,031,206.23 = 350,171.88/x
  3. Step 3: Cross multiply
    687,784.56x = 1,031,206.23 × 350,171.88
  4. Step 4: Simplify right side
    687,784.56x = 361,099,424,226.81
  5. Step 5: Solve for x
    x = 361,099,424,226.81/687,784.56
  6. Step 6: Final answer
    x = 525,018.22

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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.