Home / 781,668.69-1,172,325.91-397,027.63

Finding the Fourth Proportional to 781,668.69, 1,172,325.91 and 397,027.63

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Solution

The fourth proportional to 781,668.69, 1,172,325.91 and 397,027.63 is: 595,451.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,668.69 : 1,172,325.91 = 397,027.63 : x
  2. Step 2: Convert to fraction form
    781,668.69/1,172,325.91 = 397,027.63/x
  3. Step 3: Cross multiply
    781,668.69x = 1,172,325.91 × 397,027.63
  4. Step 4: Simplify right side
    781,668.69x = 465,445,777,634.89
  5. Step 5: Solve for x
    x = 465,445,777,634.89/781,668.69
  6. Step 6: Final answer
    x = 595,451.48

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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.