Home / 1,139,117.08-1,707,832-689,732.32

Finding the Fourth Proportional to 1,139,117.08, 1,707,832 and 689,732.32

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Solution

The fourth proportional to 1,139,117.08, 1,707,832 and 689,732.32 is: 1,034,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,117.08 : 1,707,832 = 689,732.32 : x
  2. Step 2: Convert to fraction form
    1,139,117.08/1,707,832 = 689,732.32/x
  3. Step 3: Cross multiply
    1,139,117.08x = 1,707,832 × 689,732.32
  4. Step 4: Simplify right side
    1,139,117.08x = 1,177,946,927,530.24
  5. Step 5: Solve for x
    x = 1,177,946,927,530.24/1,139,117.08
  6. Step 6: Final answer
    x = 1,034,087.67

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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.