Home / 808,015.10-1,115,063.82-440,490.15

Finding the Fourth Proportional to 808,015.10, 1,115,063.82 and 440,490.15

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Solution

The fourth proportional to 808,015.10, 1,115,063.82 and 440,490.15 is: 607,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,015.10 : 1,115,063.82 = 440,490.15 : x
  2. Step 2: Convert to fraction form
    808,015.10/1,115,063.82 = 440,490.15/x
  3. Step 3: Cross multiply
    808,015.10x = 1,115,063.82 × 440,490.15
  4. Step 4: Simplify right side
    808,015.10x = 491,174,629,331.37
  5. Step 5: Solve for x
    x = 491,174,629,331.37/808,015.10
  6. Step 6: Final answer
    x = 607,878.04

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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.