Home / 639,485.24-882,495.75-352,999.16

Finding the Fourth Proportional to 639,485.24, 882,495.75 and 352,999.16

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Solution

The fourth proportional to 639,485.24, 882,495.75 and 352,999.16 is: 487,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,485.24 : 882,495.75 = 352,999.16 : x
  2. Step 2: Convert to fraction form
    639,485.24/882,495.75 = 352,999.16/x
  3. Step 3: Cross multiply
    639,485.24x = 882,495.75 × 352,999.16
  4. Step 4: Simplify right side
    639,485.24x = 311,520,258,453.57
  5. Step 5: Solve for x
    x = 311,520,258,453.57/639,485.24
  6. Step 6: Final answer
    x = 487,142.22

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1.5x scale

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.