Home / 687,597.03-1,031,606.71-328,226.46

Finding the Fourth Proportional to 687,597.03, 1,031,606.71 and 328,226.46

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Solution

The fourth proportional to 687,597.03, 1,031,606.71 and 328,226.46 is: 492,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,597.03 : 1,031,606.71 = 328,226.46 : x
  2. Step 2: Convert to fraction form
    687,597.03/1,031,606.71 = 328,226.46/x
  3. Step 3: Cross multiply
    687,597.03x = 1,031,606.71 × 328,226.46
  4. Step 4: Simplify right side
    687,597.03x = 338,600,613,846.46
  5. Step 5: Solve for x
    x = 338,600,613,846.46/687,597.03
  6. Step 6: Final answer
    x = 492,440.48

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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.