Home / 687,271.26-1,031,041.24-207,538.11

Finding the Fourth Proportional to 687,271.26, 1,031,041.24 and 207,538.11

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Solution

The fourth proportional to 687,271.26, 1,031,041.24 and 207,538.11 is: 311,347.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,271.26 : 1,031,041.24 = 207,538.11 : x
  2. Step 2: Convert to fraction form
    687,271.26/1,031,041.24 = 207,538.11/x
  3. Step 3: Cross multiply
    687,271.26x = 1,031,041.24 × 207,538.11
  4. Step 4: Simplify right side
    687,271.26x = 213,980,350,281.66
  5. Step 5: Solve for x
    x = 213,980,350,281.66/687,271.26
  6. Step 6: Final answer
    x = 311,347.74

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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.