Home / 1,347,589.58-2,021,675.02-388,038.72

Finding the Fourth Proportional to 1,347,589.58, 2,021,675.02 and 388,038.72

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Solution

The fourth proportional to 1,347,589.58, 2,021,675.02 and 388,038.72 is: 582,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,589.58 : 2,021,675.02 = 388,038.72 : x
  2. Step 2: Convert to fraction form
    1,347,589.58/2,021,675.02 = 388,038.72/x
  3. Step 3: Cross multiply
    1,347,589.58x = 2,021,675.02 × 388,038.72
  4. Step 4: Simplify right side
    1,347,589.58x = 784,488,187,016.77
  5. Step 5: Solve for x
    x = 784,488,187,016.77/1,347,589.58
  6. Step 6: Final answer
    x = 582,141.77

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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.