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Finding the Fourth Proportional to 520,751.33, 779,865.57 and 360,377.84

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Solution

The fourth proportional to 520,751.33, 779,865.57 and 360,377.84 is: 539,693.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,751.33 : 779,865.57 = 360,377.84 : x
  2. Step 2: Convert to fraction form
    520,751.33/779,865.57 = 360,377.84/x
  3. Step 3: Cross multiply
    520,751.33x = 779,865.57 × 360,377.84
  4. Step 4: Simplify right side
    520,751.33x = 281,046,271,556.63
  5. Step 5: Solve for x
    x = 281,046,271,556.63/520,751.33
  6. Step 6: Final answer
    x = 539,693.82

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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.