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Finding the Fourth Proportional to 668,446.96, 922,663.32 and 429,982.96

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Solution

The fourth proportional to 668,446.96, 922,663.32 and 429,982.96 is: 593,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,446.96 : 922,663.32 = 429,982.96 : x
  2. Step 2: Convert to fraction form
    668,446.96/922,663.32 = 429,982.96/x
  3. Step 3: Cross multiply
    668,446.96x = 922,663.32 × 429,982.96
  4. Step 4: Simplify right side
    668,446.96x = 396,729,505,417.03
  5. Step 5: Solve for x
    x = 396,729,505,417.03/668,446.96
  6. Step 6: Final answer
    x = 593,509.33

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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.