Home / 1,158,284.88-1,736,202.33-428,339.05

Finding the Fourth Proportional to 1,158,284.88, 1,736,202.33 and 428,339.05

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Solution

The fourth proportional to 1,158,284.88, 1,736,202.33 and 428,339.05 is: 642,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,284.88 : 1,736,202.33 = 428,339.05 : x
  2. Step 2: Convert to fraction form
    1,158,284.88/1,736,202.33 = 428,339.05/x
  3. Step 3: Cross multiply
    1,158,284.88x = 1,736,202.33 × 428,339.05
  4. Step 4: Simplify right side
    1,158,284.88x = 743,683,252,299.48
  5. Step 5: Solve for x
    x = 743,683,252,299.48/1,158,284.88
  6. Step 6: Final answer
    x = 642,055.56

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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.