Home / 740,119.64-1,021,256.39-413,392.39

Finding the Fourth Proportional to 740,119.64, 1,021,256.39 and 413,392.39

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Solution

The fourth proportional to 740,119.64, 1,021,256.39 and 413,392.39 is: 570,420.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,119.64 : 1,021,256.39 = 413,392.39 : x
  2. Step 2: Convert to fraction form
    740,119.64/1,021,256.39 = 413,392.39/x
  3. Step 3: Cross multiply
    740,119.64x = 1,021,256.39 × 413,392.39
  4. Step 4: Simplify right side
    740,119.64x = 422,179,618,345.21
  5. Step 5: Solve for x
    x = 422,179,618,345.21/740,119.64
  6. Step 6: Final answer
    x = 570,420.78

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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.