Home / 808,141.32-1,212,959.76-409,062.36

Finding the Fourth Proportional to 808,141.32, 1,212,959.76 and 409,062.36

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Solution

The fourth proportional to 808,141.32, 1,212,959.76 and 409,062.36 is: 613,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,141.32 : 1,212,959.76 = 409,062.36 : x
  2. Step 2: Convert to fraction form
    808,141.32/1,212,959.76 = 409,062.36/x
  3. Step 3: Cross multiply
    808,141.32x = 1,212,959.76 × 409,062.36
  4. Step 4: Simplify right side
    808,141.32x = 496,176,182,010.63
  5. Step 5: Solve for x
    x = 496,176,182,010.63/808,141.32
  6. Step 6: Final answer
    x = 613,972.05

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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.