Home / 720,734.69-1,081,754.15-384,059.81

Finding the Fourth Proportional to 720,734.69, 1,081,754.15 and 384,059.81

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Solution

The fourth proportional to 720,734.69, 1,081,754.15 and 384,059.81 is: 576,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,734.69 : 1,081,754.15 = 384,059.81 : x
  2. Step 2: Convert to fraction form
    720,734.69/1,081,754.15 = 384,059.81/x
  3. Step 3: Cross multiply
    720,734.69x = 1,081,754.15 × 384,059.81
  4. Step 4: Simplify right side
    720,734.69x = 415,458,285,986.64
  5. Step 5: Solve for x
    x = 415,458,285,986.64/720,734.69
  6. Step 6: Final answer
    x = 576,437.20

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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.