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Finding the Fourth Proportional to 603,686.70, 905,518.98 and 243,848.52

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Solution

The fourth proportional to 603,686.70, 905,518.98 and 243,848.52 is: 365,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,686.70 : 905,518.98 = 243,848.52 : x
  2. Step 2: Convert to fraction form
    603,686.70/905,518.98 = 243,848.52/x
  3. Step 3: Cross multiply
    603,686.70x = 905,518.98 × 243,848.52
  4. Step 4: Simplify right side
    603,686.70x = 220,809,463,104.91
  5. Step 5: Solve for x
    x = 220,809,463,104.91/603,686.70
  6. Step 6: Final answer
    x = 365,768.31

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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.