Home / 809,085.80-1,214,114.70-335,721.80

Finding the Fourth Proportional to 809,085.80, 1,214,114.70 and 335,721.80

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Solution

The fourth proportional to 809,085.80, 1,214,114.70 and 335,721.80 is: 503,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,085.80 : 1,214,114.70 = 335,721.80 : x
  2. Step 2: Convert to fraction form
    809,085.80/1,214,114.70 = 335,721.80/x
  3. Step 3: Cross multiply
    809,085.80x = 1,214,114.70 × 335,721.80
  4. Step 4: Simplify right side
    809,085.80x = 407,604,772,490.46
  5. Step 5: Solve for x
    x = 407,604,772,490.46/809,085.80
  6. Step 6: Final answer
    x = 503,784.36

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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.