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Finding the Fourth Proportional to 514,515.26, 709,804.89 and 310,452.37

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Solution

The fourth proportional to 514,515.26, 709,804.89 and 310,452.37 is: 428,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,515.26 : 709,804.89 = 310,452.37 : x
  2. Step 2: Convert to fraction form
    514,515.26/709,804.89 = 310,452.37/x
  3. Step 3: Cross multiply
    514,515.26x = 709,804.89 × 310,452.37
  4. Step 4: Simplify right side
    514,515.26x = 220,360,608,563.58
  5. Step 5: Solve for x
    x = 220,360,608,563.58/514,515.26
  6. Step 6: Final answer
    x = 428,287.80

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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.