Home / 1,347,589.85-2,021,675.40-388,038.98

Finding the Fourth Proportional to 1,347,589.85, 2,021,675.40 and 388,038.98

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Solution

The fourth proportional to 1,347,589.85, 2,021,675.40 and 388,038.98 is: 582,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,589.85 : 2,021,675.40 = 388,038.98 : x
  2. Step 2: Convert to fraction form
    1,347,589.85/2,021,675.40 = 388,038.98/x
  3. Step 3: Cross multiply
    1,347,589.85x = 2,021,675.40 × 388,038.98
  4. Step 4: Simplify right side
    1,347,589.85x = 784,488,849,998.72
  5. Step 5: Solve for x
    x = 784,488,849,998.72/1,347,589.85
  6. Step 6: Final answer
    x = 582,142.15

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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.