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Finding the Fourth Proportional to 691,508, 954,281.22 and 373,556

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Solution

The fourth proportional to 691,508, 954,281.22 and 373,556 is: 515,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,508 : 954,281.22 = 373,556 : x
  2. Step 2: Convert to fraction form
    691,508/954,281.22 = 373,556/x
  3. Step 3: Cross multiply
    691,508x = 954,281.22 × 373,556
  4. Step 4: Simplify right side
    691,508x = 356,477,475,418.32
  5. Step 5: Solve for x
    x = 356,477,475,418.32/691,508
  6. Step 6: Final answer
    x = 515,507.38

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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.