Home / 1,216,352.10-1,678,493.65-672,455.37

Finding the Fourth Proportional to 1,216,352.10, 1,678,493.65 and 672,455.37

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Solution

The fourth proportional to 1,216,352.10, 1,678,493.65 and 672,455.37 is: 927,948.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,352.10 : 1,678,493.65 = 672,455.37 : x
  2. Step 2: Convert to fraction form
    1,216,352.10/1,678,493.65 = 672,455.37/x
  3. Step 3: Cross multiply
    1,216,352.10x = 1,678,493.65 × 672,455.37
  4. Step 4: Simplify right side
    1,216,352.10x = 1,128,712,068,453.40
  5. Step 5: Solve for x
    x = 1,128,712,068,453.40/1,216,352.10
  6. Step 6: Final answer
    x = 927,948.47

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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.