Home / 428,975.88-592,057.53-238,050.78

Finding the Fourth Proportional to 428,975.88, 592,057.53 and 238,050.78

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Solution

The fourth proportional to 428,975.88, 592,057.53 and 238,050.78 is: 328,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,975.88 : 592,057.53 = 238,050.78 : x
  2. Step 2: Convert to fraction form
    428,975.88/592,057.53 = 238,050.78/x
  3. Step 3: Cross multiply
    428,975.88x = 592,057.53 × 238,050.78
  4. Step 4: Simplify right side
    428,975.88x = 140,939,756,821.37
  5. Step 5: Solve for x
    x = 140,939,756,821.37/428,975.88
  6. Step 6: Final answer
    x = 328,549.37

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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.