Home / 680,611.60-1,020,917.40-326,317.60

Finding the Fourth Proportional to 680,611.60, 1,020,917.40 and 326,317.60

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Solution

The fourth proportional to 680,611.60, 1,020,917.40 and 326,317.60 is: 489,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,611.60 : 1,020,917.40 = 326,317.60 : x
  2. Step 2: Convert to fraction form
    680,611.60/1,020,917.40 = 326,317.60/x
  3. Step 3: Cross multiply
    680,611.60x = 1,020,917.40 × 326,317.60
  4. Step 4: Simplify right side
    680,611.60x = 333,143,315,766.24
  5. Step 5: Solve for x
    x = 333,143,315,766.24/680,611.60
  6. Step 6: Final answer
    x = 489,476.40

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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.