Home / 859,456.67-1,288,741.52-385,736.67

Finding the Fourth Proportional to 859,456.67, 1,288,741.52 and 385,736.67

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Solution

The fourth proportional to 859,456.67, 1,288,741.52 and 385,736.67 is: 578,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,456.67 : 1,288,741.52 = 385,736.67 : x
  2. Step 2: Convert to fraction form
    859,456.67/1,288,741.52 = 385,736.67/x
  3. Step 3: Cross multiply
    859,456.67x = 1,288,741.52 × 385,736.67
  4. Step 4: Simplify right side
    859,456.67x = 497,114,863,379.88
  5. Step 5: Solve for x
    x = 497,114,863,379.88/859,456.67
  6. Step 6: Final answer
    x = 578,405.97

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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.