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Finding the Fourth Proportional to 722,353.28, 996,762.07 and 416,530.15

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Solution

The fourth proportional to 722,353.28, 996,762.07 and 416,530.15 is: 574,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,353.28 : 996,762.07 = 416,530.15 : x
  2. Step 2: Convert to fraction form
    722,353.28/996,762.07 = 416,530.15/x
  3. Step 3: Cross multiply
    722,353.28x = 996,762.07 × 416,530.15
  4. Step 4: Simplify right side
    722,353.28x = 415,181,450,998.18
  5. Step 5: Solve for x
    x = 415,181,450,998.18/722,353.28
  6. Step 6: Final answer
    x = 574,762.32

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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.