Home / 831,816.90-1,247,725.04-326,615.58

Finding the Fourth Proportional to 831,816.90, 1,247,725.04 and 326,615.58

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Solution

The fourth proportional to 831,816.90, 1,247,725.04 and 326,615.58 is: 489,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,816.90 : 1,247,725.04 = 326,615.58 : x
  2. Step 2: Convert to fraction form
    831,816.90/1,247,725.04 = 326,615.58/x
  3. Step 3: Cross multiply
    831,816.90x = 1,247,725.04 × 326,615.58
  4. Step 4: Simplify right side
    831,816.90x = 407,526,435,987.05
  5. Step 5: Solve for x
    x = 407,526,435,987.05/831,816.90
  6. Step 6: Final answer
    x = 489,923.25

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Double scale
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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.