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Finding the Fourth Proportional to 527,303.37, 727,678.39 and 285,585.93

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Solution

The fourth proportional to 527,303.37, 727,678.39 and 285,585.93 is: 394,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,303.37 : 727,678.39 = 285,585.93 : x
  2. Step 2: Convert to fraction form
    527,303.37/727,678.39 = 285,585.93/x
  3. Step 3: Cross multiply
    527,303.37x = 727,678.39 × 285,585.93
  4. Step 4: Simplify right side
    527,303.37x = 207,814,709,749.05
  5. Step 5: Solve for x
    x = 207,814,709,749.05/527,303.37
  6. Step 6: Final answer
    x = 394,108.44

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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.