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Finding the Fourth Proportional to 526,817.29, 727,007.93 and 285,099.93

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Solution

The fourth proportional to 526,817.29, 727,007.93 and 285,099.93 is: 393,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,817.29 : 727,007.93 = 285,099.93 : x
  2. Step 2: Convert to fraction form
    526,817.29/727,007.93 = 285,099.93/x
  3. Step 3: Cross multiply
    526,817.29x = 727,007.93 × 285,099.93
  4. Step 4: Simplify right side
    526,817.29x = 207,269,909,952.45
  5. Step 5: Solve for x
    x = 207,269,909,952.45/526,817.29
  6. Step 6: Final answer
    x = 393,437.94

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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.