Home / 905,926-1,250,255.64-503,595.76

Finding the Fourth Proportional to 905,926, 1,250,255.64 and 503,595.76

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Solution

The fourth proportional to 905,926, 1,250,255.64 and 503,595.76 is: 695,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,926 : 1,250,255.64 = 503,595.76 : x
  2. Step 2: Convert to fraction form
    905,926/1,250,255.64 = 503,595.76/x
  3. Step 3: Cross multiply
    905,926x = 1,250,255.64 × 503,595.76
  4. Step 4: Simplify right side
    905,926x = 629,623,439,220.09
  5. Step 5: Solve for x
    x = 629,623,439,220.09/905,926
  6. Step 6: Final answer
    x = 695,005.37

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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.