Home / 449,557.05-671,056.23-392,805.42

Finding the Fourth Proportional to 449,557.05, 671,056.23 and 392,805.42

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Solution

The fourth proportional to 449,557.05, 671,056.23 and 392,805.42 is: 586,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,557.05 : 671,056.23 = 392,805.42 : x
  2. Step 2: Convert to fraction form
    449,557.05/671,056.23 = 392,805.42/x
  3. Step 3: Cross multiply
    449,557.05x = 671,056.23 × 392,805.42
  4. Step 4: Simplify right side
    449,557.05x = 263,594,524,268.77
  5. Step 5: Solve for x
    x = 263,594,524,268.77/449,557.05
  6. Step 6: Final answer
    x = 586,342.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.