Home / 687,669.65-1,031,499.87-374,119.46

Finding the Fourth Proportional to 687,669.65, 1,031,499.87 and 374,119.46

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Solution

The fourth proportional to 687,669.65, 1,031,499.87 and 374,119.46 is: 561,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,669.65 : 1,031,499.87 = 374,119.46 : x
  2. Step 2: Convert to fraction form
    687,669.65/1,031,499.87 = 374,119.46/x
  3. Step 3: Cross multiply
    687,669.65x = 1,031,499.87 × 374,119.46
  4. Step 4: Simplify right side
    687,669.65x = 385,904,171,662.15
  5. Step 5: Solve for x
    x = 385,904,171,662.15/687,669.65
  6. Step 6: Final answer
    x = 561,176.68

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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.