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Finding the Fourth Proportional to 1,200,795.65, 1,800,822.67 and 631,867.65

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Solution

The fourth proportional to 1,200,795.65, 1,800,822.67 and 631,867.65 is: 947,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,795.65 : 1,800,822.67 = 631,867.65 : x
  2. Step 2: Convert to fraction form
    1,200,795.65/1,800,822.67 = 631,867.65/x
  3. Step 3: Cross multiply
    1,200,795.65x = 1,800,822.67 × 631,867.65
  4. Step 4: Simplify right side
    1,200,795.65x = 1,137,881,580,226.87
  5. Step 5: Solve for x
    x = 1,137,881,580,226.87/1,200,795.65
  6. Step 6: Final answer
    x = 947,606.35

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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.