Home / 324,582.40-486,990.24-285,624.64

Finding the Fourth Proportional to 324,582.40, 486,990.24 and 285,624.64

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Solution

The fourth proportional to 324,582.40, 486,990.24 and 285,624.64 is: 428,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,582.40 : 486,990.24 = 285,624.64 : x
  2. Step 2: Convert to fraction form
    324,582.40/486,990.24 = 285,624.64/x
  3. Step 3: Cross multiply
    324,582.40x = 486,990.24 × 285,624.64
  4. Step 4: Simplify right side
    324,582.40x = 139,096,411,983.51
  5. Step 5: Solve for x
    x = 139,096,411,983.51/324,582.40
  6. Step 6: Final answer
    x = 428,539.60

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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.