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Finding the Fourth Proportional to 702,950.70, 1,054,879.65 and 387,633.90

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Solution

The fourth proportional to 702,950.70, 1,054,879.65 and 387,633.90 is: 581,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,950.70 : 1,054,879.65 = 387,633.90 : x
  2. Step 2: Convert to fraction form
    702,950.70/1,054,879.65 = 387,633.90/x
  3. Step 3: Cross multiply
    702,950.70x = 1,054,879.65 × 387,633.90
  4. Step 4: Simplify right side
    702,950.70x = 408,907,112,760.14
  5. Step 5: Solve for x
    x = 408,907,112,760.14/702,950.70
  6. Step 6: Final answer
    x = 581,700.98

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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.