Home / 1,131,835.20-1,697,169.60-421,497.60

Finding the Fourth Proportional to 1,131,835.20, 1,697,169.60 and 421,497.60

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Solution

The fourth proportional to 1,131,835.20, 1,697,169.60 and 421,497.60 is: 632,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,835.20 : 1,697,169.60 = 421,497.60 : x
  2. Step 2: Convert to fraction form
    1,131,835.20/1,697,169.60 = 421,497.60/x
  3. Step 3: Cross multiply
    1,131,835.20x = 1,697,169.60 × 421,497.60
  4. Step 4: Simplify right side
    1,131,835.20x = 715,352,913,192.96
  5. Step 5: Solve for x
    x = 715,352,913,192.96/1,131,835.20
  6. Step 6: Final answer
    x = 632,029.22

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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.