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Finding the Fourth Proportional to 556,820.58, 768,412.37 and 302,171.77

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Solution

The fourth proportional to 556,820.58, 768,412.37 and 302,171.77 is: 416,997.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,820.58 : 768,412.37 = 302,171.77 : x
  2. Step 2: Convert to fraction form
    556,820.58/768,412.37 = 302,171.77/x
  3. Step 3: Cross multiply
    556,820.58x = 768,412.37 × 302,171.77
  4. Step 4: Simplify right side
    556,820.58x = 232,192,525,932.80
  5. Step 5: Solve for x
    x = 232,192,525,932.80/556,820.58
  6. Step 6: Final answer
    x = 416,997.03

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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.