Home / 347,625.40-521,438.10-339,849.40

Finding the Fourth Proportional to 347,625.40, 521,438.10 and 339,849.40

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Solution

The fourth proportional to 347,625.40, 521,438.10 and 339,849.40 is: 509,774.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,625.40 : 521,438.10 = 339,849.40 : x
  2. Step 2: Convert to fraction form
    347,625.40/521,438.10 = 339,849.40/x
  3. Step 3: Cross multiply
    347,625.40x = 521,438.10 × 339,849.40
  4. Step 4: Simplify right side
    347,625.40x = 177,210,425,422.14
  5. Step 5: Solve for x
    x = 177,210,425,422.14/347,625.40
  6. Step 6: Final answer
    x = 509,774.10

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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.