Home / 905,442.70-1,357,319.82-305,984.65

Finding the Fourth Proportional to 905,442.70, 1,357,319.82 and 305,984.65

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Solution

The fourth proportional to 905,442.70, 1,357,319.82 and 305,984.65 is: 458,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,442.70 : 1,357,319.82 = 305,984.65 : x
  2. Step 2: Convert to fraction form
    905,442.70/1,357,319.82 = 305,984.65/x
  3. Step 3: Cross multiply
    905,442.70x = 1,357,319.82 × 305,984.65
  4. Step 4: Simplify right side
    905,442.70x = 415,319,030,060.76
  5. Step 5: Solve for x
    x = 415,319,030,060.76/905,442.70
  6. Step 6: Final answer
    x = 458,691.68

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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.