Home / 460,621.24-690,406.62-210,778.36

Finding the Fourth Proportional to 460,621.24, 690,406.62 and 210,778.36

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Solution

The fourth proportional to 460,621.24, 690,406.62 and 210,778.36 is: 315,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,621.24 : 690,406.62 = 210,778.36 : x
  2. Step 2: Convert to fraction form
    460,621.24/690,406.62 = 210,778.36/x
  3. Step 3: Cross multiply
    460,621.24x = 690,406.62 × 210,778.36
  4. Step 4: Simplify right side
    460,621.24x = 145,522,775,096.74
  5. Step 5: Solve for x
    x = 145,522,775,096.74/460,621.24
  6. Step 6: Final answer
    x = 315,927.19

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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.