Home / 454,077.20-681,115.80-405,088.40

Finding the Fourth Proportional to 454,077.20, 681,115.80 and 405,088.40

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Solution

The fourth proportional to 454,077.20, 681,115.80 and 405,088.40 is: 607,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,077.20 : 681,115.80 = 405,088.40 : x
  2. Step 2: Convert to fraction form
    454,077.20/681,115.80 = 405,088.40/x
  3. Step 3: Cross multiply
    454,077.20x = 681,115.80 × 405,088.40
  4. Step 4: Simplify right side
    454,077.20x = 275,912,109,636.72
  5. Step 5: Solve for x
    x = 275,912,109,636.72/454,077.20
  6. Step 6: Final answer
    x = 607,632.60

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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.