Home / 382,928.70-528,437.13-210,843.08

Finding the Fourth Proportional to 382,928.70, 528,437.13 and 210,843.08

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Solution

The fourth proportional to 382,928.70, 528,437.13 and 210,843.08 is: 290,960.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,928.70 : 528,437.13 = 210,843.08 : x
  2. Step 2: Convert to fraction form
    382,928.70/528,437.13 = 210,843.08/x
  3. Step 3: Cross multiply
    382,928.70x = 528,437.13 × 210,843.08
  4. Step 4: Simplify right side
    382,928.70x = 111,417,309,433.38
  5. Step 5: Solve for x
    x = 111,417,309,433.38/382,928.70
  6. Step 6: Final answer
    x = 290,960.98

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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.