Home / 455,927.20-685,057.20-404,605.60

Finding the Fourth Proportional to 455,927.20, 685,057.20 and 404,605.60

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Solution

The fourth proportional to 455,927.20, 685,057.20 and 404,605.60 is: 607,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,927.20 : 685,057.20 = 404,605.60 : x
  2. Step 2: Convert to fraction form
    455,927.20/685,057.20 = 404,605.60/x
  3. Step 3: Cross multiply
    455,927.20x = 685,057.20 × 404,605.60
  4. Step 4: Simplify right side
    455,927.20x = 277,177,979,440.32
  5. Step 5: Solve for x
    x = 277,177,979,440.32/455,927.20
  6. Step 6: Final answer
    x = 607,943.50

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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.