Home / 738,378.70-1,107,568.05-419,514.10

Finding the Fourth Proportional to 738,378.70, 1,107,568.05 and 419,514.10

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Solution

The fourth proportional to 738,378.70, 1,107,568.05 and 419,514.10 is: 629,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,378.70 : 1,107,568.05 = 419,514.10 : x
  2. Step 2: Convert to fraction form
    738,378.70/1,107,568.05 = 419,514.10/x
  3. Step 3: Cross multiply
    738,378.70x = 1,107,568.05 × 419,514.10
  4. Step 4: Simplify right side
    738,378.70x = 464,640,413,684.51
  5. Step 5: Solve for x
    x = 464,640,413,684.51/738,378.70
  6. Step 6: Final answer
    x = 629,271.15

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Double scale
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1.5x scale

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.