Home / 738,844.56-1,019,603.97-399,312

Finding the Fourth Proportional to 738,844.56, 1,019,603.97 and 399,312

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Solution

The fourth proportional to 738,844.56, 1,019,603.97 and 399,312 is: 551,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,844.56 : 1,019,603.97 = 399,312 : x
  2. Step 2: Convert to fraction form
    738,844.56/1,019,603.97 = 399,312/x
  3. Step 3: Cross multiply
    738,844.56x = 1,019,603.97 × 399,312
  4. Step 4: Simplify right side
    738,844.56x = 407,140,100,468.64
  5. Step 5: Solve for x
    x = 407,140,100,468.64/738,844.56
  6. Step 6: Final answer
    x = 551,049.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.