Home / 829,061.64-1,243,406.70-323,634.60

Finding the Fourth Proportional to 829,061.64, 1,243,406.70 and 323,634.60

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Solution

The fourth proportional to 829,061.64, 1,243,406.70 and 323,634.60 is: 485,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,061.64 : 1,243,406.70 = 323,634.60 : x
  2. Step 2: Convert to fraction form
    829,061.64/1,243,406.70 = 323,634.60/x
  3. Step 3: Cross multiply
    829,061.64x = 1,243,406.70 × 323,634.60
  4. Step 4: Simplify right side
    829,061.64x = 402,409,429,991.82
  5. Step 5: Solve for x
    x = 402,409,429,991.82/829,061.64
  6. Step 6: Final answer
    x = 485,379.39

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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.