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Finding the Fourth Proportional to 324,633.60, 486,950.40 and 288,998.40

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Solution

The fourth proportional to 324,633.60, 486,950.40 and 288,998.40 is: 433,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,633.60 : 486,950.40 = 288,998.40 : x
  2. Step 2: Convert to fraction form
    324,633.60/486,950.40 = 288,998.40/x
  3. Step 3: Cross multiply
    324,633.60x = 486,950.40 × 288,998.40
  4. Step 4: Simplify right side
    324,633.60x = 140,727,886,479.36
  5. Step 5: Solve for x
    x = 140,727,886,479.36/324,633.60
  6. Step 6: Final answer
    x = 433,497.60

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1.5x scale

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.