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Finding the Fourth Proportional to 556,669.81, 768,204.39 and 302,021.02

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Solution

The fourth proportional to 556,669.81, 768,204.39 and 302,021.02 is: 416,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,669.81 : 768,204.39 = 302,021.02 : x
  2. Step 2: Convert to fraction form
    556,669.81/768,204.39 = 302,021.02/x
  3. Step 3: Cross multiply
    556,669.81x = 768,204.39 × 302,021.02
  4. Step 4: Simplify right side
    556,669.81x = 232,013,873,436.28
  5. Step 5: Solve for x
    x = 232,013,873,436.28/556,669.81
  6. Step 6: Final answer
    x = 416,789.04

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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.