Home / 521,010.98-719,107.26-317,127.50

Finding the Fourth Proportional to 521,010.98, 719,107.26 and 317,127.50

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Solution

The fourth proportional to 521,010.98, 719,107.26 and 317,127.50 is: 437,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,010.98 : 719,107.26 = 317,127.50 : x
  2. Step 2: Convert to fraction form
    521,010.98/719,107.26 = 317,127.50/x
  3. Step 3: Cross multiply
    521,010.98x = 719,107.26 × 317,127.50
  4. Step 4: Simplify right side
    521,010.98x = 228,048,687,595.65
  5. Step 5: Solve for x
    x = 228,048,687,595.65/521,010.98
  6. Step 6: Final answer
    x = 437,704.19

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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.