Home / 681,109.20-1,021,663.80-629,933.40

Finding the Fourth Proportional to 681,109.20, 1,021,663.80 and 629,933.40

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Solution

The fourth proportional to 681,109.20, 1,021,663.80 and 629,933.40 is: 944,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,109.20 : 1,021,663.80 = 629,933.40 : x
  2. Step 2: Convert to fraction form
    681,109.20/1,021,663.80 = 629,933.40/x
  3. Step 3: Cross multiply
    681,109.20x = 1,021,663.80 × 629,933.40
  4. Step 4: Simplify right side
    681,109.20x = 643,580,151,190.92
  5. Step 5: Solve for x
    x = 643,580,151,190.92/681,109.20
  6. Step 6: Final answer
    x = 944,900.10

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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.