Home / 947,815.34-1,421,796.54-316,731.38

Finding the Fourth Proportional to 947,815.34, 1,421,796.54 and 316,731.38

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Solution

The fourth proportional to 947,815.34, 1,421,796.54 and 316,731.38 is: 475,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,815.34 : 1,421,796.54 = 316,731.38 : x
  2. Step 2: Convert to fraction form
    947,815.34/1,421,796.54 = 316,731.38/x
  3. Step 3: Cross multiply
    947,815.34x = 1,421,796.54 × 316,731.38
  4. Step 4: Simplify right side
    947,815.34x = 450,327,580,193.43
  5. Step 5: Solve for x
    x = 450,327,580,193.43/947,815.34
  6. Step 6: Final answer
    x = 475,121.64

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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.