Home / 878,957.60-1,318,436.40-214,109.60

Finding the Fourth Proportional to 878,957.60, 1,318,436.40 and 214,109.60

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Solution

The fourth proportional to 878,957.60, 1,318,436.40 and 214,109.60 is: 321,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,957.60 : 1,318,436.40 = 214,109.60 : x
  2. Step 2: Convert to fraction form
    878,957.60/1,318,436.40 = 214,109.60/x
  3. Step 3: Cross multiply
    878,957.60x = 1,318,436.40 × 214,109.60
  4. Step 4: Simplify right side
    878,957.60x = 282,289,890,229.44
  5. Step 5: Solve for x
    x = 282,289,890,229.44/878,957.60
  6. Step 6: Final answer
    x = 321,164.40

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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.