Home / 449,725.04-619,566.72-313,511.48

Finding the Fourth Proportional to 449,725.04, 619,566.72 and 313,511.48

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Solution

The fourth proportional to 449,725.04, 619,566.72 and 313,511.48 is: 431,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,725.04 : 619,566.72 = 313,511.48 : x
  2. Step 2: Convert to fraction form
    449,725.04/619,566.72 = 313,511.48/x
  3. Step 3: Cross multiply
    449,725.04x = 619,566.72 × 313,511.48
  4. Step 4: Simplify right side
    449,725.04x = 194,241,279,345.95
  5. Step 5: Solve for x
    x = 194,241,279,345.95/449,725.04
  6. Step 6: Final answer
    x = 431,911.19

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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.