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Finding the Fourth Proportional to 879,441.60, 1,318,125.60 and 374,001.60

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Solution

The fourth proportional to 879,441.60, 1,318,125.60 and 374,001.60 is: 560,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,441.60 : 1,318,125.60 = 374,001.60 : x
  2. Step 2: Convert to fraction form
    879,441.60/1,318,125.60 = 374,001.60/x
  3. Step 3: Cross multiply
    879,441.60x = 1,318,125.60 × 374,001.60
  4. Step 4: Simplify right side
    879,441.60x = 492,981,083,400.96
  5. Step 5: Solve for x
    x = 492,981,083,400.96/879,441.60
  6. Step 6: Final answer
    x = 560,561.48

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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.