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Finding the Fourth Proportional to 455,747.29, 628,937.84 and 251,802.92

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Solution

The fourth proportional to 455,747.29, 628,937.84 and 251,802.92 is: 347,491.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,747.29 : 628,937.84 = 251,802.92 : x
  2. Step 2: Convert to fraction form
    455,747.29/628,937.84 = 251,802.92/x
  3. Step 3: Cross multiply
    455,747.29x = 628,937.84 × 251,802.92
  4. Step 4: Simplify right side
    455,747.29x = 158,368,386,812.35
  5. Step 5: Solve for x
    x = 158,368,386,812.35/455,747.29
  6. Step 6: Final answer
    x = 347,491.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.