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Finding the Fourth Proportional to 664,102.40, 996,445.19 and 348,485.49

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Solution

The fourth proportional to 664,102.40, 996,445.19 and 348,485.49 is: 522,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,102.40 : 996,445.19 = 348,485.49 : x
  2. Step 2: Convert to fraction form
    664,102.40/996,445.19 = 348,485.49/x
  3. Step 3: Cross multiply
    664,102.40x = 996,445.19 × 348,485.49
  4. Step 4: Simplify right side
    664,102.40x = 347,246,691,166.51
  5. Step 5: Solve for x
    x = 347,246,691,166.51/664,102.40
  6. Step 6: Final answer
    x = 522,881.25

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1.5x scale

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.