Home / 1,129,672.49-1,558,958.15-620,378.51

Finding the Fourth Proportional to 1,129,672.49, 1,558,958.15 and 620,378.51

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Solution

The fourth proportional to 1,129,672.49, 1,558,958.15 and 620,378.51 is: 856,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,672.49 : 1,558,958.15 = 620,378.51 : x
  2. Step 2: Convert to fraction form
    1,129,672.49/1,558,958.15 = 620,378.51/x
  3. Step 3: Cross multiply
    1,129,672.49x = 1,558,958.15 × 620,378.51
  4. Step 4: Simplify right side
    1,129,672.49x = 967,144,134,249.36
  5. Step 5: Solve for x
    x = 967,144,134,249.36/1,129,672.49
  6. Step 6: Final answer
    x = 856,127.90

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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.