Home / 959,312.87-1,438,718.70-285,212.64

Finding the Fourth Proportional to 959,312.87, 1,438,718.70 and 285,212.64

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Solution

The fourth proportional to 959,312.87, 1,438,718.70 and 285,212.64 is: 427,744.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,312.87 : 1,438,718.70 = 285,212.64 : x
  2. Step 2: Convert to fraction form
    959,312.87/1,438,718.70 = 285,212.64/x
  3. Step 3: Cross multiply
    959,312.87x = 1,438,718.70 × 285,212.64
  4. Step 4: Simplify right side
    959,312.87x = 410,340,758,644.37
  5. Step 5: Solve for x
    x = 410,340,758,644.37/959,312.87
  6. Step 6: Final answer
    x = 427,744.46

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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.