Home / 470,123.76-648,828.16-276,522.24

Finding the Fourth Proportional to 470,123.76, 648,828.16 and 276,522.24

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Solution

The fourth proportional to 470,123.76, 648,828.16 and 276,522.24 is: 381,634.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,123.76 : 648,828.16 = 276,522.24 : x
  2. Step 2: Convert to fraction form
    470,123.76/648,828.16 = 276,522.24/x
  3. Step 3: Cross multiply
    470,123.76x = 648,828.16 × 276,522.24
  4. Step 4: Simplify right side
    470,123.76x = 179,415,416,178.28
  5. Step 5: Solve for x
    x = 179,415,416,178.28/470,123.76
  6. Step 6: Final answer
    x = 381,634.44

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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.