Home / 1,216,874.88-1,679,298.48-672,982.56

Finding the Fourth Proportional to 1,216,874.88, 1,679,298.48 and 672,982.56

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Solution

The fourth proportional to 1,216,874.88, 1,679,298.48 and 672,982.56 is: 928,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,874.88 : 1,679,298.48 = 672,982.56 : x
  2. Step 2: Convert to fraction form
    1,216,874.88/1,679,298.48 = 672,982.56/x
  3. Step 3: Cross multiply
    1,216,874.88x = 1,679,298.48 × 672,982.56
  4. Step 4: Simplify right side
    1,216,874.88x = 1,130,138,590,074.51
  5. Step 5: Solve for x
    x = 1,130,138,590,074.51/1,216,874.88
  6. Step 6: Final answer
    x = 928,722.10

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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.