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Finding the Fourth Proportional to 405,889.48, 560,089.38 and 274,800.52

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Solution

The fourth proportional to 405,889.48, 560,089.38 and 274,800.52 is: 379,198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,889.48 : 560,089.38 = 274,800.52 : x
  2. Step 2: Convert to fraction form
    405,889.48/560,089.38 = 274,800.52/x
  3. Step 3: Cross multiply
    405,889.48x = 560,089.38 × 274,800.52
  4. Step 4: Simplify right side
    405,889.48x = 153,912,852,870.48
  5. Step 5: Solve for x
    x = 153,912,852,870.48/405,889.48
  6. Step 6: Final answer
    x = 379,198.92

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1.5x scale

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.