Home / 405,721.40-608,582.10-264,003.80

Finding the Fourth Proportional to 405,721.40, 608,582.10 and 264,003.80

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Solution

The fourth proportional to 405,721.40, 608,582.10 and 264,003.80 is: 396,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,721.40 : 608,582.10 = 264,003.80 : x
  2. Step 2: Convert to fraction form
    405,721.40/608,582.10 = 264,003.80/x
  3. Step 3: Cross multiply
    405,721.40x = 608,582.10 × 264,003.80
  4. Step 4: Simplify right side
    405,721.40x = 160,667,987,011.98
  5. Step 5: Solve for x
    x = 160,667,987,011.98/405,721.40
  6. Step 6: Final answer
    x = 396,005.70

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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.