Home / 1,216,493.53-1,678,731.16-672,615.39

Finding the Fourth Proportional to 1,216,493.53, 1,678,731.16 and 672,615.39

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Solution

The fourth proportional to 1,216,493.53, 1,678,731.16 and 672,615.39 is: 928,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,493.53 : 1,678,731.16 = 672,615.39 : x
  2. Step 2: Convert to fraction form
    1,216,493.53/1,678,731.16 = 672,615.39/x
  3. Step 3: Cross multiply
    1,216,493.53x = 1,678,731.16 × 672,615.39
  4. Step 4: Simplify right side
    1,216,493.53x = 1,129,140,408,010.19
  5. Step 5: Solve for x
    x = 1,129,140,408,010.19/1,216,493.53
  6. Step 6: Final answer
    x = 928,192.69

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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.