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Finding the Fourth Proportional to 540,556.67, 745,844.45 and 322,722.95

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Solution

The fourth proportional to 540,556.67, 745,844.45 and 322,722.95 is: 445,283.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,556.67 : 745,844.45 = 322,722.95 : x
  2. Step 2: Convert to fraction form
    540,556.67/745,844.45 = 322,722.95/x
  3. Step 3: Cross multiply
    540,556.67x = 745,844.45 × 322,722.95
  4. Step 4: Simplify right side
    540,556.67x = 240,701,120,338.32
  5. Step 5: Solve for x
    x = 240,701,120,338.32/540,556.67
  6. Step 6: Final answer
    x = 445,283.78

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1.5x scale

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.