Home / 918,576.54-1,374,916.80-491,043.55

Finding the Fourth Proportional to 918,576.54, 1,374,916.80 and 491,043.55

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Solution

The fourth proportional to 918,576.54, 1,374,916.80 and 491,043.55 is: 734,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,576.54 : 1,374,916.80 = 491,043.55 : x
  2. Step 2: Convert to fraction form
    918,576.54/1,374,916.80 = 491,043.55/x
  3. Step 3: Cross multiply
    918,576.54x = 1,374,916.80 × 491,043.55
  4. Step 4: Simplify right side
    918,576.54x = 675,144,026,426.64
  5. Step 5: Solve for x
    x = 675,144,026,426.64/918,576.54
  6. Step 6: Final answer
    x = 734,989.41

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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.