Home / 858,970.45-1,286,493.51-410,007.37

Finding the Fourth Proportional to 858,970.45, 1,286,493.51 and 410,007.37

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Solution

The fourth proportional to 858,970.45, 1,286,493.51 and 410,007.37 is: 614,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,970.45 : 1,286,493.51 = 410,007.37 : x
  2. Step 2: Convert to fraction form
    858,970.45/1,286,493.51 = 410,007.37/x
  3. Step 3: Cross multiply
    858,970.45x = 1,286,493.51 × 410,007.37
  4. Step 4: Simplify right side
    858,970.45x = 527,471,820,137.49
  5. Step 5: Solve for x
    x = 527,471,820,137.49/858,970.45
  6. Step 6: Final answer
    x = 614,074.47

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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.