Home / 436,285.29-654,438.87-120,744.93

Finding the Fourth Proportional to 436,285.29, 654,438.87 and 120,744.93

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Solution

The fourth proportional to 436,285.29, 654,438.87 and 120,744.93 is: 181,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,285.29 : 654,438.87 = 120,744.93 : x
  2. Step 2: Convert to fraction form
    436,285.29/654,438.87 = 120,744.93/x
  3. Step 3: Cross multiply
    436,285.29x = 654,438.87 × 120,744.93
  4. Step 4: Simplify right side
    436,285.29x = 79,020,173,980.76
  5. Step 5: Solve for x
    x = 79,020,173,980.76/436,285.29
  6. Step 6: Final answer
    x = 181,120.42

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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.