Home / 738,694.40-1,019,398.23-399,162.65

Finding the Fourth Proportional to 738,694.40, 1,019,398.23 and 399,162.65

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Solution

The fourth proportional to 738,694.40, 1,019,398.23 and 399,162.65 is: 550,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,694.40 : 1,019,398.23 = 399,162.65 : x
  2. Step 2: Convert to fraction form
    738,694.40/1,019,398.23 = 399,162.65/x
  3. Step 3: Cross multiply
    738,694.40x = 1,019,398.23 × 399,162.65
  4. Step 4: Simplify right side
    738,694.40x = 406,905,693,795.12
  5. Step 5: Solve for x
    x = 406,905,693,795.12/738,694.40
  6. Step 6: Final answer
    x = 550,844.43

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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.