Home / 830,279.49-1,245,420.45-231,242.37

Finding the Fourth Proportional to 830,279.49, 1,245,420.45 and 231,242.37

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Solution

The fourth proportional to 830,279.49, 1,245,420.45 and 231,242.37 is: 346,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,279.49 : 1,245,420.45 = 231,242.37 : x
  2. Step 2: Convert to fraction form
    830,279.49/1,245,420.45 = 231,242.37/x
  3. Step 3: Cross multiply
    830,279.49x = 1,245,420.45 × 231,242.37
  4. Step 4: Simplify right side
    830,279.49x = 287,993,976,504.47
  5. Step 5: Solve for x
    x = 287,993,976,504.47/830,279.49
  6. Step 6: Final answer
    x = 346,863.89

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1.5x scale

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.