Home / 919,719.50-1,379,657.02-254,871.50

Finding the Fourth Proportional to 919,719.50, 1,379,657.02 and 254,871.50

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Solution

The fourth proportional to 919,719.50, 1,379,657.02 and 254,871.50 is: 382,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,719.50 : 1,379,657.02 = 254,871.50 : x
  2. Step 2: Convert to fraction form
    919,719.50/1,379,657.02 = 254,871.50/x
  3. Step 3: Cross multiply
    919,719.50x = 1,379,657.02 × 254,871.50
  4. Step 4: Simplify right side
    919,719.50x = 351,635,254,172.93
  5. Step 5: Solve for x
    x = 351,635,254,172.93/919,719.50
  6. Step 6: Final answer
    x = 382,328.80

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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.