Home / 289,360.11-434,707.20-277,402.89

Finding the Fourth Proportional to 289,360.11, 434,707.20 and 277,402.89

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Solution

The fourth proportional to 289,360.11, 434,707.20 and 277,402.89 is: 416,743.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,360.11 : 434,707.20 = 277,402.89 : x
  2. Step 2: Convert to fraction form
    289,360.11/434,707.20 = 277,402.89/x
  3. Step 3: Cross multiply
    289,360.11x = 434,707.20 × 277,402.89
  4. Step 4: Simplify right side
    289,360.11x = 120,589,033,583.81
  5. Step 5: Solve for x
    x = 120,589,033,583.81/289,360.11
  6. Step 6: Final answer
    x = 416,743.81

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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.