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Finding the Fourth Proportional to 528,358.86, 790,736.43 and 336,136.14

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Solution

The fourth proportional to 528,358.86, 790,736.43 and 336,136.14 is: 503,057.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,358.86 : 790,736.43 = 336,136.14 : x
  2. Step 2: Convert to fraction form
    528,358.86/790,736.43 = 336,136.14/x
  3. Step 3: Cross multiply
    528,358.86x = 790,736.43 × 336,136.14
  4. Step 4: Simplify right side
    528,358.86x = 265,795,091,337.58
  5. Step 5: Solve for x
    x = 265,795,091,337.58/528,358.86
  6. Step 6: Final answer
    x = 503,057.89

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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.