Home / 947,102.07-1,420,665.41-316,015.88

Finding the Fourth Proportional to 947,102.07, 1,420,665.41 and 316,015.88

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Solution

The fourth proportional to 947,102.07, 1,420,665.41 and 316,015.88 is: 474,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,102.07 : 1,420,665.41 = 316,015.88 : x
  2. Step 2: Convert to fraction form
    947,102.07/1,420,665.41 = 316,015.88/x
  3. Step 3: Cross multiply
    947,102.07x = 1,420,665.41 × 316,015.88
  4. Step 4: Simplify right side
    947,102.07x = 448,952,835,233.15
  5. Step 5: Solve for x
    x = 448,952,835,233.15/947,102.07
  6. Step 6: Final answer
    x = 474,027.93

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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.