Home / 1,216,323.13-1,678,453.60-672,426.34

Finding the Fourth Proportional to 1,216,323.13, 1,678,453.60 and 672,426.34

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Solution

The fourth proportional to 1,216,323.13, 1,678,453.60 and 672,426.34 is: 927,908.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,323.13 : 1,678,453.60 = 672,426.34 : x
  2. Step 2: Convert to fraction form
    1,216,323.13/1,678,453.60 = 672,426.34/x
  3. Step 3: Cross multiply
    1,216,323.13x = 1,678,453.60 × 672,426.34
  4. Step 4: Simplify right side
    1,216,323.13x = 1,128,636,411,107.82
  5. Step 5: Solve for x
    x = 1,128,636,411,107.82/1,216,323.13
  6. Step 6: Final answer
    x = 927,908.37

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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.