Home / 1,216,374.56-1,678,450.38-672,436.88

Finding the Fourth Proportional to 1,216,374.56, 1,678,450.38 and 672,436.88

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Solution

The fourth proportional to 1,216,374.56, 1,678,450.38 and 672,436.88 is: 927,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,374.56 : 1,678,450.38 = 672,436.88 : x
  2. Step 2: Convert to fraction form
    1,216,374.56/1,678,450.38 = 672,436.88/x
  3. Step 3: Cross multiply
    1,216,374.56x = 1,678,450.38 × 672,436.88
  4. Step 4: Simplify right side
    1,216,374.56x = 1,128,651,936,762.01
  5. Step 5: Solve for x
    x = 1,128,651,936,762.01/1,216,374.56
  6. Step 6: Final answer
    x = 927,881.90

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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.