Home / 1,296,011.28-1,788,496.68-723,051.54

Finding the Fourth Proportional to 1,296,011.28, 1,788,496.68 and 723,051.54

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Solution

The fourth proportional to 1,296,011.28, 1,788,496.68 and 723,051.54 is: 997,811.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,011.28 : 1,788,496.68 = 723,051.54 : x
  2. Step 2: Convert to fraction form
    1,296,011.28/1,788,496.68 = 723,051.54/x
  3. Step 3: Cross multiply
    1,296,011.28x = 1,788,496.68 × 723,051.54
  4. Step 4: Simplify right side
    1,296,011.28x = 1,293,175,278,758.89
  5. Step 5: Solve for x
    x = 1,293,175,278,758.89/1,296,011.28
  6. Step 6: Final answer
    x = 997,811.75

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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.