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Finding the Fourth Proportional to 405,370.48, 559,274.88 and 262,311.52

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Solution

The fourth proportional to 405,370.48, 559,274.88 and 262,311.52 is: 361,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,370.48 : 559,274.88 = 262,311.52 : x
  2. Step 2: Convert to fraction form
    405,370.48/559,274.88 = 262,311.52/x
  3. Step 3: Cross multiply
    405,370.48x = 559,274.88 × 262,311.52
  4. Step 4: Simplify right side
    405,370.48x = 146,704,243,870.62
  5. Step 5: Solve for x
    x = 146,704,243,870.62/405,370.48
  6. Step 6: Final answer
    x = 361,901.65

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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.