Home / 915,157.92-1,262,914.32-512,748.96

Finding the Fourth Proportional to 915,157.92, 1,262,914.32 and 512,748.96

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Solution

The fourth proportional to 915,157.92, 1,262,914.32 and 512,748.96 is: 707,591.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,157.92 : 1,262,914.32 = 512,748.96 : x
  2. Step 2: Convert to fraction form
    915,157.92/1,262,914.32 = 512,748.96/x
  3. Step 3: Cross multiply
    915,157.92x = 1,262,914.32 × 512,748.96
  4. Step 4: Simplify right side
    915,157.92x = 647,558,004,149.11
  5. Step 5: Solve for x
    x = 647,558,004,149.11/915,157.92
  6. Step 6: Final answer
    x = 707,591.54

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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.