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Finding the Fourth Proportional to 488,929.64, 673,460.82 and 345,440.60

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Solution

The fourth proportional to 488,929.64, 673,460.82 and 345,440.60 is: 475,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,929.64 : 673,460.82 = 345,440.60 : x
  2. Step 2: Convert to fraction form
    488,929.64/673,460.82 = 345,440.60/x
  3. Step 3: Cross multiply
    488,929.64x = 673,460.82 × 345,440.60
  4. Step 4: Simplify right side
    488,929.64x = 232,640,709,737.29
  5. Step 5: Solve for x
    x = 232,640,709,737.29/488,929.64
  6. Step 6: Final answer
    x = 475,816.34

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1.5x scale

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.