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Finding the Fourth Proportional to 525,876.46, 788,814.69 and 480,257.26

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Solution

The fourth proportional to 525,876.46, 788,814.69 and 480,257.26 is: 720,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,876.46 : 788,814.69 = 480,257.26 : x
  2. Step 2: Convert to fraction form
    525,876.46/788,814.69 = 480,257.26/x
  3. Step 3: Cross multiply
    525,876.46x = 788,814.69 × 480,257.26
  4. Step 4: Simplify right side
    525,876.46x = 378,833,981,667.15
  5. Step 5: Solve for x
    x = 378,833,981,667.15/525,876.46
  6. Step 6: Final answer
    x = 720,385.89

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Similar ratio
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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.