Home / 846,153.20-1,269,229.80-285,129.20

Finding the Fourth Proportional to 846,153.20, 1,269,229.80 and 285,129.20

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Solution

The fourth proportional to 846,153.20, 1,269,229.80 and 285,129.20 is: 427,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,153.20 : 1,269,229.80 = 285,129.20 : x
  2. Step 2: Convert to fraction form
    846,153.20/1,269,229.80 = 285,129.20/x
  3. Step 3: Cross multiply
    846,153.20x = 1,269,229.80 × 285,129.20
  4. Step 4: Simplify right side
    846,153.20x = 361,894,477,490.16
  5. Step 5: Solve for x
    x = 361,894,477,490.16/846,153.20
  6. Step 6: Final answer
    x = 427,693.80

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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.