Home / 959,355.96-1,438,783.20-285,255.72

Finding the Fourth Proportional to 959,355.96, 1,438,783.20 and 285,255.72

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Solution

The fourth proportional to 959,355.96, 1,438,783.20 and 285,255.72 is: 427,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,355.96 : 1,438,783.20 = 285,255.72 : x
  2. Step 2: Convert to fraction form
    959,355.96/1,438,783.20 = 285,255.72/x
  3. Step 3: Cross multiply
    959,355.96x = 1,438,783.20 × 285,255.72
  4. Step 4: Simplify right side
    959,355.96x = 410,421,137,639.90
  5. Step 5: Solve for x
    x = 410,421,137,639.90/959,355.96
  6. Step 6: Final answer
    x = 427,809.02

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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.