Home / 639,357.35-882,311.32-352,875.38

Finding the Fourth Proportional to 639,357.35, 882,311.32 and 352,875.38

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Solution

The fourth proportional to 639,357.35, 882,311.32 and 352,875.38 is: 486,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,357.35 : 882,311.32 = 352,875.38 : x
  2. Step 2: Convert to fraction form
    639,357.35/882,311.32 = 352,875.38/x
  3. Step 3: Cross multiply
    639,357.35x = 882,311.32 × 352,875.38
  4. Step 4: Simplify right side
    639,357.35x = 311,345,938,352.84
  5. Step 5: Solve for x
    x = 311,345,938,352.84/639,357.35
  6. Step 6: Final answer
    x = 486,967.02

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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.