Home / 442,464.19-663,802.90-126,918.36

Finding the Fourth Proportional to 442,464.19, 663,802.90 and 126,918.36

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Solution

The fourth proportional to 442,464.19, 663,802.90 and 126,918.36 is: 190,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,464.19 : 663,802.90 = 126,918.36 : x
  2. Step 2: Convert to fraction form
    442,464.19/663,802.90 = 126,918.36/x
  3. Step 3: Cross multiply
    442,464.19x = 663,802.90 × 126,918.36
  4. Step 4: Simplify right side
    442,464.19x = 84,248,775,113.95
  5. Step 5: Solve for x
    x = 84,248,775,113.95/442,464.19
  6. Step 6: Final answer
    x = 190,408.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.