Home / 1,216,645.93-1,678,982.25-672,818.30

Finding the Fourth Proportional to 1,216,645.93, 1,678,982.25 and 672,818.30

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Solution

The fourth proportional to 1,216,645.93, 1,678,982.25 and 672,818.30 is: 928,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,645.93 : 1,678,982.25 = 672,818.30 : x
  2. Step 2: Convert to fraction form
    1,216,645.93/1,678,982.25 = 672,818.30/x
  3. Step 3: Cross multiply
    1,216,645.93x = 1,678,982.25 × 672,818.30
  4. Step 4: Simplify right side
    1,216,645.93x = 1,129,649,983,175.18
  5. Step 5: Solve for x
    x = 1,129,649,983,175.18/1,216,645.93
  6. Step 6: Final answer
    x = 928,495.26

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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.