Home / 867,069.22-1,298,921.18-638,950.90

Finding the Fourth Proportional to 867,069.22, 1,298,921.18 and 638,950.90

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Solution

The fourth proportional to 867,069.22, 1,298,921.18 and 638,950.90 is: 957,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,069.22 : 1,298,921.18 = 638,950.90 : x
  2. Step 2: Convert to fraction form
    867,069.22/1,298,921.18 = 638,950.90/x
  3. Step 3: Cross multiply
    867,069.22x = 1,298,921.18 × 638,950.90
  4. Step 4: Simplify right side
    867,069.22x = 829,946,856,990.06
  5. Step 5: Solve for x
    x = 829,946,856,990.06/867,069.22
  6. Step 6: Final answer
    x = 957,186.39

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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.