Home / 738,619.13-1,019,294.10-399,087.38

Finding the Fourth Proportional to 738,619.13, 1,019,294.10 and 399,087.38

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Solution

The fourth proportional to 738,619.13, 1,019,294.10 and 399,087.38 is: 550,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,619.13 : 1,019,294.10 = 399,087.38 : x
  2. Step 2: Convert to fraction form
    738,619.13/1,019,294.10 = 399,087.38/x
  3. Step 3: Cross multiply
    738,619.13x = 1,019,294.10 × 399,087.38
  4. Step 4: Simplify right side
    738,619.13x = 406,787,414,366.69
  5. Step 5: Solve for x
    x = 406,787,414,366.69/738,619.13
  6. Step 6: Final answer
    x = 550,740.42

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1.5x scale

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.