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Finding the Fourth Proportional to 770,907.52, 1,063,896.96 and 431,372.80

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Solution

The fourth proportional to 770,907.52, 1,063,896.96 and 431,372.80 is: 595,319.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,907.52 : 1,063,896.96 = 431,372.80 : x
  2. Step 2: Convert to fraction form
    770,907.52/1,063,896.96 = 431,372.80/x
  3. Step 3: Cross multiply
    770,907.52x = 1,063,896.96 × 431,372.80
  4. Step 4: Simplify right side
    770,907.52x = 458,936,210,546.69
  5. Step 5: Solve for x
    x = 458,936,210,546.69/770,907.52
  6. Step 6: Final answer
    x = 595,319.41

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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.