Home / 497,619.99-686,499.03-316,234.67

Finding the Fourth Proportional to 497,619.99, 686,499.03 and 316,234.67

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Solution

The fourth proportional to 497,619.99, 686,499.03 and 316,234.67 is: 436,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,619.99 : 686,499.03 = 316,234.67 : x
  2. Step 2: Convert to fraction form
    497,619.99/686,499.03 = 316,234.67/x
  3. Step 3: Cross multiply
    497,619.99x = 686,499.03 × 316,234.67
  4. Step 4: Simplify right side
    497,619.99x = 217,094,790,774.88
  5. Step 5: Solve for x
    x = 217,094,790,774.88/497,619.99
  6. Step 6: Final answer
    x = 436,266.22

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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.