Home / 712,012.02-982,568.92-385,317.81

Finding the Fourth Proportional to 712,012.02, 982,568.92 and 385,317.81

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Solution

The fourth proportional to 712,012.02, 982,568.92 and 385,317.81 is: 531,734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,012.02 : 982,568.92 = 385,317.81 : x
  2. Step 2: Convert to fraction form
    712,012.02/982,568.92 = 385,317.81/x
  3. Step 3: Cross multiply
    712,012.02x = 982,568.92 × 385,317.81
  4. Step 4: Simplify right side
    712,012.02x = 378,601,299,515.62
  5. Step 5: Solve for x
    x = 378,601,299,515.62/712,012.02
  6. Step 6: Final answer
    x = 531,734.42

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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.