Home / 1,216,213.74-1,678,364.01-672,363.36

Finding the Fourth Proportional to 1,216,213.74, 1,678,364.01 and 672,363.36

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Solution

The fourth proportional to 1,216,213.74, 1,678,364.01 and 672,363.36 is: 927,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,213.74 : 1,678,364.01 = 672,363.36 : x
  2. Step 2: Convert to fraction form
    1,216,213.74/1,678,364.01 = 672,363.36/x
  3. Step 3: Cross multiply
    1,216,213.74x = 1,678,364.01 × 672,363.36
  4. Step 4: Simplify right side
    1,216,213.74x = 1,128,470,465,066.67
  5. Step 5: Solve for x
    x = 1,128,470,465,066.67/1,216,213.74
  6. Step 6: Final answer
    x = 927,855.38

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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.