Home / 1,216,570.92-1,678,841.28-672,729.36

Finding the Fourth Proportional to 1,216,570.92, 1,678,841.28 and 672,729.36

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Solution

The fourth proportional to 1,216,570.92, 1,678,841.28 and 672,729.36 is: 928,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,570.92 : 1,678,841.28 = 672,729.36 : x
  2. Step 2: Convert to fraction form
    1,216,570.92/1,678,841.28 = 672,729.36/x
  3. Step 3: Cross multiply
    1,216,570.92x = 1,678,841.28 × 672,729.36
  4. Step 4: Simplify right side
    1,216,570.92x = 1,129,405,819,835.98
  5. Step 5: Solve for x
    x = 1,129,405,819,835.98/1,216,570.92
  6. Step 6: Final answer
    x = 928,351.81

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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.