Home / 480,381.56-720,585-210,370.79

Finding the Fourth Proportional to 480,381.56, 720,585 and 210,370.79

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Solution

The fourth proportional to 480,381.56, 720,585 and 210,370.79 is: 315,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,381.56 : 720,585 = 210,370.79 : x
  2. Step 2: Convert to fraction form
    480,381.56/720,585 = 210,370.79/x
  3. Step 3: Cross multiply
    480,381.56x = 720,585 × 210,370.79
  4. Step 4: Simplify right side
    480,381.56x = 151,590,032,109.23
  5. Step 5: Solve for x
    x = 151,590,032,109.23/480,381.56
  6. Step 6: Final answer
    x = 315,561.72

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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.