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Finding the Fourth Proportional to 455,542.40, 683,313.60 and 356,009.60

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Solution

The fourth proportional to 455,542.40, 683,313.60 and 356,009.60 is: 534,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,542.40 : 683,313.60 = 356,009.60 : x
  2. Step 2: Convert to fraction form
    455,542.40/683,313.60 = 356,009.60/x
  3. Step 3: Cross multiply
    455,542.40x = 683,313.60 × 356,009.60
  4. Step 4: Simplify right side
    455,542.40x = 243,266,201,410.56
  5. Step 5: Solve for x
    x = 243,266,201,410.56/455,542.40
  6. Step 6: Final answer
    x = 534,014.40

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Similar ratio
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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.