Home / 813,027.51-1,219,345.25-339,456.15

Finding the Fourth Proportional to 813,027.51, 1,219,345.25 and 339,456.15

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Solution

The fourth proportional to 813,027.51, 1,219,345.25 and 339,456.15 is: 509,102.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,027.51 : 1,219,345.25 = 339,456.15 : x
  2. Step 2: Convert to fraction form
    813,027.51/1,219,345.25 = 339,456.15/x
  3. Step 3: Cross multiply
    813,027.51x = 1,219,345.25 × 339,456.15
  4. Step 4: Simplify right side
    813,027.51x = 413,914,242,388.51
  5. Step 5: Solve for x
    x = 413,914,242,388.51/813,027.51
  6. Step 6: Final answer
    x = 509,102.38

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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.