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Finding the Fourth Proportional to 1,728,731.88, 2,385,890.64 and 964,834.56

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Solution

The fourth proportional to 1,728,731.88, 2,385,890.64 and 964,834.56 is: 1,331,606.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,731.88 : 2,385,890.64 = 964,834.56 : x
  2. Step 2: Convert to fraction form
    1,728,731.88/2,385,890.64 = 964,834.56/x
  3. Step 3: Cross multiply
    1,728,731.88x = 2,385,890.64 × 964,834.56
  4. Step 4: Simplify right side
    1,728,731.88x = 2,301,989,745,852.52
  5. Step 5: Solve for x
    x = 2,301,989,745,852.52/1,728,731.88
  6. Step 6: Final answer
    x = 1,331,606.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.