Home / 639,166.59-882,048.87-352,686.45

Finding the Fourth Proportional to 639,166.59, 882,048.87 and 352,686.45

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Solution

The fourth proportional to 639,166.59, 882,048.87 and 352,686.45 is: 486,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,166.59 : 882,048.87 = 352,686.45 : x
  2. Step 2: Convert to fraction form
    639,166.59/882,048.87 = 352,686.45/x
  3. Step 3: Cross multiply
    639,166.59x = 882,048.87 × 352,686.45
  4. Step 4: Simplify right side
    639,166.59x = 311,086,684,686.81
  5. Step 5: Solve for x
    x = 311,086,684,686.81/639,166.59
  6. Step 6: Final answer
    x = 486,706.74

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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.