Home / 543,290.28-749,788.05-317,008.68

Finding the Fourth Proportional to 543,290.28, 749,788.05 and 317,008.68

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Solution

The fourth proportional to 543,290.28, 749,788.05 and 317,008.68 is: 437,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,290.28 : 749,788.05 = 317,008.68 : x
  2. Step 2: Convert to fraction form
    543,290.28/749,788.05 = 317,008.68/x
  3. Step 3: Cross multiply
    543,290.28x = 749,788.05 × 317,008.68
  4. Step 4: Simplify right side
    543,290.28x = 237,689,320,010.27
  5. Step 5: Solve for x
    x = 237,689,320,010.27/543,290.28
  6. Step 6: Final answer
    x = 437,499.67

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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.