Home / 639,504.22-882,515.98-353,024.50

Finding the Fourth Proportional to 639,504.22, 882,515.98 and 353,024.50

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Solution

The fourth proportional to 639,504.22, 882,515.98 and 353,024.50 is: 487,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,504.22 : 882,515.98 = 353,024.50 : x
  2. Step 2: Convert to fraction form
    639,504.22/882,515.98 = 353,024.50/x
  3. Step 3: Cross multiply
    639,504.22x = 882,515.98 × 353,024.50
  4. Step 4: Simplify right side
    639,504.22x = 311,549,762,581.51
  5. Step 5: Solve for x
    x = 311,549,762,581.51/639,504.22
  6. Step 6: Final answer
    x = 487,173.90

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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.