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Finding the Fourth Proportional to 598,630.70, 898,383.45 and 421,483.70

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Solution

The fourth proportional to 598,630.70, 898,383.45 and 421,483.70 is: 632,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,630.70 : 898,383.45 = 421,483.70 : x
  2. Step 2: Convert to fraction form
    598,630.70/898,383.45 = 421,483.70/x
  3. Step 3: Cross multiply
    598,630.70x = 898,383.45 × 421,483.70
  4. Step 4: Simplify right side
    598,630.70x = 378,653,980,524.77
  5. Step 5: Solve for x
    x = 378,653,980,524.77/598,630.70
  6. Step 6: Final answer
    x = 632,533.51

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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.