Home / 858,028.78-1,286,827.23-352,730.66

Finding the Fourth Proportional to 858,028.78, 1,286,827.23 and 352,730.66

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Solution

The fourth proportional to 858,028.78, 1,286,827.23 and 352,730.66 is: 529,007.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,028.78 : 1,286,827.23 = 352,730.66 : x
  2. Step 2: Convert to fraction form
    858,028.78/1,286,827.23 = 352,730.66/x
  3. Step 3: Cross multiply
    858,028.78x = 1,286,827.23 × 352,730.66
  4. Step 4: Simplify right side
    858,028.78x = 453,903,418,143.87
  5. Step 5: Solve for x
    x = 453,903,418,143.87/858,028.78
  6. Step 6: Final answer
    x = 529,007.22

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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.