Home / 486,215.45-670,929.36-268,409.98

Finding the Fourth Proportional to 486,215.45, 670,929.36 and 268,409.98

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Solution

The fourth proportional to 486,215.45, 670,929.36 and 268,409.98 is: 370,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,215.45 : 670,929.36 = 268,409.98 : x
  2. Step 2: Convert to fraction form
    486,215.45/670,929.36 = 268,409.98/x
  3. Step 3: Cross multiply
    486,215.45x = 670,929.36 × 268,409.98
  4. Step 4: Simplify right side
    486,215.45x = 180,084,136,403.01
  5. Step 5: Solve for x
    x = 180,084,136,403.01/486,215.45
  6. Step 6: Final answer
    x = 370,379.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.