Home / 1,216,511.81-1,678,714.17-672,604.91

Finding the Fourth Proportional to 1,216,511.81, 1,678,714.17 and 672,604.91

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Solution

The fourth proportional to 1,216,511.81, 1,678,714.17 and 672,604.91 is: 928,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,511.81 : 1,678,714.17 = 672,604.91 : x
  2. Step 2: Convert to fraction form
    1,216,511.81/1,678,714.17 = 672,604.91/x
  3. Step 3: Cross multiply
    1,216,511.81x = 1,678,714.17 × 672,604.91
  4. Step 4: Simplify right side
    1,216,511.81x = 1,129,111,384,835.00
  5. Step 5: Solve for x
    x = 1,129,111,384,835.00/1,216,511.81
  6. Step 6: Final answer
    x = 928,154.89

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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.