Home / 1,139,113.08-1,707,826-689,728.32

Finding the Fourth Proportional to 1,139,113.08, 1,707,826 and 689,728.32

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Solution

The fourth proportional to 1,139,113.08, 1,707,826 and 689,728.32 is: 1,034,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,113.08 : 1,707,826 = 689,728.32 : x
  2. Step 2: Convert to fraction form
    1,139,113.08/1,707,826 = 689,728.32/x
  3. Step 3: Cross multiply
    1,139,113.08x = 1,707,826 × 689,728.32
  4. Step 4: Simplify right side
    1,139,113.08x = 1,177,935,957,832.32
  5. Step 5: Solve for x
    x = 1,177,935,957,832.32/1,139,113.08
  6. Step 6: Final answer
    x = 1,034,081.67

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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.