Home / 647,721.04-971,610.74-198,409.16

Finding the Fourth Proportional to 647,721.04, 971,610.74 and 198,409.16

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Solution

The fourth proportional to 647,721.04, 971,610.74 and 198,409.16 is: 297,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,721.04 : 971,610.74 = 198,409.16 : x
  2. Step 2: Convert to fraction form
    647,721.04/971,610.74 = 198,409.16/x
  3. Step 3: Cross multiply
    647,721.04x = 971,610.74 × 198,409.16
  4. Step 4: Simplify right side
    647,721.04x = 192,776,470,770.38
  5. Step 5: Solve for x
    x = 192,776,470,770.38/647,721.04
  6. Step 6: Final answer
    x = 297,622.68

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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.