Home / 1,689,719.40-2,537,343.90-1,131,229.80

Finding the Fourth Proportional to 1,689,719.40, 2,537,343.90 and 1,131,229.80

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Solution

The fourth proportional to 1,689,719.40, 2,537,343.90 and 1,131,229.80 is: 1,698,695.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,719.40 : 2,537,343.90 = 1,131,229.80 : x
  2. Step 2: Convert to fraction form
    1,689,719.40/2,537,343.90 = 1,131,229.80/x
  3. Step 3: Cross multiply
    1,689,719.40x = 2,537,343.90 × 1,131,229.80
  4. Step 4: Simplify right side
    1,689,719.40x = 2,870,319,032,528.22
  5. Step 5: Solve for x
    x = 2,870,319,032,528.22/1,689,719.40
  6. Step 6: Final answer
    x = 1,698,695.67

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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.