Home / 858,942.96-1,288,239.48-326,277.24

Finding the Fourth Proportional to 858,942.96, 1,288,239.48 and 326,277.24

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Solution

The fourth proportional to 858,942.96, 1,288,239.48 and 326,277.24 is: 489,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,942.96 : 1,288,239.48 = 326,277.24 : x
  2. Step 2: Convert to fraction form
    858,942.96/1,288,239.48 = 326,277.24/x
  3. Step 3: Cross multiply
    858,942.96x = 1,288,239.48 × 326,277.24
  4. Step 4: Simplify right side
    858,942.96x = 420,323,221,993.44
  5. Step 5: Solve for x
    x = 420,323,221,993.44/858,942.96
  6. Step 6: Final answer
    x = 489,349.40

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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.