Home / 740,193.96-1,021,467.39-400,662.21

Finding the Fourth Proportional to 740,193.96, 1,021,467.39 and 400,662.21

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Solution

The fourth proportional to 740,193.96, 1,021,467.39 and 400,662.21 is: 552,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,193.96 : 1,021,467.39 = 400,662.21 : x
  2. Step 2: Convert to fraction form
    740,193.96/1,021,467.39 = 400,662.21/x
  3. Step 3: Cross multiply
    740,193.96x = 1,021,467.39 × 400,662.21
  4. Step 4: Simplify right side
    740,193.96x = 409,263,381,920.33
  5. Step 5: Solve for x
    x = 409,263,381,920.33/740,193.96
  6. Step 6: Final answer
    x = 552,913.70

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Double scale
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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.