Home / 808,039.16-1,212,415.79-423,696.24

Finding the Fourth Proportional to 808,039.16, 1,212,415.79 and 423,696.24

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Solution

The fourth proportional to 808,039.16, 1,212,415.79 and 423,696.24 is: 635,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,039.16 : 1,212,415.79 = 423,696.24 : x
  2. Step 2: Convert to fraction form
    808,039.16/1,212,415.79 = 423,696.24/x
  3. Step 3: Cross multiply
    808,039.16x = 1,212,415.79 × 423,696.24
  4. Step 4: Simplify right side
    808,039.16x = 513,696,009,421.15
  5. Step 5: Solve for x
    x = 513,696,009,421.15/808,039.16
  6. Step 6: Final answer
    x = 635,731.58

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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.