Home / 980,570.21-1,470,012.92-340,790.83

Finding the Fourth Proportional to 980,570.21, 1,470,012.92 and 340,790.83

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Solution

The fourth proportional to 980,570.21, 1,470,012.92 and 340,790.83 is: 510,893.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,570.21 : 1,470,012.92 = 340,790.83 : x
  2. Step 2: Convert to fraction form
    980,570.21/1,470,012.92 = 340,790.83/x
  3. Step 3: Cross multiply
    980,570.21x = 1,470,012.92 × 340,790.83
  4. Step 4: Simplify right side
    980,570.21x = 500,966,917,738.54
  5. Step 5: Solve for x
    x = 500,966,917,738.54/980,570.21
  6. Step 6: Final answer
    x = 510,893.47

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1.5x scale

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.