Home / 913,039.86-1,368,438.06-512,839.38

Finding the Fourth Proportional to 913,039.86, 1,368,438.06 and 512,839.38

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Solution

The fourth proportional to 913,039.86, 1,368,438.06 and 512,839.38 is: 768,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,039.86 : 1,368,438.06 = 512,839.38 : x
  2. Step 2: Convert to fraction form
    913,039.86/1,368,438.06 = 512,839.38/x
  3. Step 3: Cross multiply
    913,039.86x = 1,368,438.06 × 512,839.38
  4. Step 4: Simplify right side
    913,039.86x = 701,788,926,258.80
  5. Step 5: Solve for x
    x = 701,788,926,258.80/913,039.86
  6. Step 6: Final answer
    x = 768,629.01

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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.