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Finding the Fourth Proportional to 883,640.80, 1,324,586.40 and 433,993.60

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Solution

The fourth proportional to 883,640.80, 1,324,586.40 and 433,993.60 is: 650,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,640.80 : 1,324,586.40 = 433,993.60 : x
  2. Step 2: Convert to fraction form
    883,640.80/1,324,586.40 = 433,993.60/x
  3. Step 3: Cross multiply
    883,640.80x = 1,324,586.40 × 433,993.60
  4. Step 4: Simplify right side
    883,640.80x = 574,862,020,247.04
  5. Step 5: Solve for x
    x = 574,862,020,247.04/883,640.80
  6. Step 6: Final answer
    x = 650,560.75

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1.5x scale

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.