Home / 448,887.65-619,279.09-313,002.05

Finding the Fourth Proportional to 448,887.65, 619,279.09 and 313,002.05

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Solution

The fourth proportional to 448,887.65, 619,279.09 and 313,002.05 is: 431,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,887.65 : 619,279.09 = 313,002.05 : x
  2. Step 2: Convert to fraction form
    448,887.65/619,279.09 = 313,002.05/x
  3. Step 3: Cross multiply
    448,887.65x = 619,279.09 × 313,002.05
  4. Step 4: Simplify right side
    448,887.65x = 193,835,620,813.23
  5. Step 5: Solve for x
    x = 193,835,620,813.23/448,887.65
  6. Step 6: Final answer
    x = 431,813.22

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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.