Home / 479,985.12-718,415.12-353,575.52

Finding the Fourth Proportional to 479,985.12, 718,415.12 and 353,575.52

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Solution

The fourth proportional to 479,985.12, 718,415.12 and 353,575.52 is: 529,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,985.12 : 718,415.12 = 353,575.52 : x
  2. Step 2: Convert to fraction form
    479,985.12/718,415.12 = 353,575.52/x
  3. Step 3: Cross multiply
    479,985.12x = 718,415.12 × 353,575.52
  4. Step 4: Simplify right side
    479,985.12x = 254,013,999,629.86
  5. Step 5: Solve for x
    x = 254,013,999,629.86/479,985.12
  6. Step 6: Final answer
    x = 529,212.24

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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.