Home / 405,868.36-560,060.20-274,779.36

Finding the Fourth Proportional to 405,868.36, 560,060.20 and 274,779.36

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Solution

The fourth proportional to 405,868.36, 560,060.20 and 274,779.36 is: 379,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,868.36 : 560,060.20 = 274,779.36 : x
  2. Step 2: Convert to fraction form
    405,868.36/560,060.20 = 274,779.36/x
  3. Step 3: Cross multiply
    405,868.36x = 560,060.20 × 274,779.36
  4. Step 4: Simplify right side
    405,868.36x = 153,892,983,317.47
  5. Step 5: Solve for x
    x = 153,892,983,317.47/405,868.36
  6. Step 6: Final answer
    x = 379,169.70

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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.