Home / 1,200,007.71-1,800,013.19-490,035.69

Finding the Fourth Proportional to 1,200,007.71, 1,800,013.19 and 490,035.69

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Solution

The fourth proportional to 1,200,007.71, 1,800,013.19 and 490,035.69 is: 735,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,007.71 : 1,800,013.19 = 490,035.69 : x
  2. Step 2: Convert to fraction form
    1,200,007.71/1,800,013.19 = 490,035.69/x
  3. Step 3: Cross multiply
    1,200,007.71x = 1,800,013.19 × 490,035.69
  4. Step 4: Simplify right side
    1,200,007.71x = 882,070,703,120.57
  5. Step 5: Solve for x
    x = 882,070,703,120.57/1,200,007.71
  6. Step 6: Final answer
    x = 735,054.20

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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.