Home / 738,149.28-1,106,363.70-338,832.24

Finding the Fourth Proportional to 738,149.28, 1,106,363.70 and 338,832.24

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Solution

The fourth proportional to 738,149.28, 1,106,363.70 and 338,832.24 is: 507,853.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,149.28 : 1,106,363.70 = 338,832.24 : x
  2. Step 2: Convert to fraction form
    738,149.28/1,106,363.70 = 338,832.24/x
  3. Step 3: Cross multiply
    738,149.28x = 1,106,363.70 × 338,832.24
  4. Step 4: Simplify right side
    738,149.28x = 374,871,690,725.69
  5. Step 5: Solve for x
    x = 374,871,690,725.69/738,149.28
  6. Step 6: Final answer
    x = 507,853.49

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Half scale
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Double scale
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Similar ratio
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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.