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Finding the Fourth Proportional to 510,538.05, 704,530.85 and 319,656.69

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Solution

The fourth proportional to 510,538.05, 704,530.85 and 319,656.69 is: 441,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,538.05 : 704,530.85 = 319,656.69 : x
  2. Step 2: Convert to fraction form
    510,538.05/704,530.85 = 319,656.69/x
  3. Step 3: Cross multiply
    510,538.05x = 704,530.85 × 319,656.69
  4. Step 4: Simplify right side
    510,538.05x = 225,207,997,915.60
  5. Step 5: Solve for x
    x = 225,207,997,915.60/510,538.05
  6. Step 6: Final answer
    x = 441,118.93

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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.