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Finding the Fourth Proportional to 450,485.34, 621,399.48 and 297,523.83

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Solution

The fourth proportional to 450,485.34, 621,399.48 and 297,523.83 is: 410,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,485.34 : 621,399.48 = 297,523.83 : x
  2. Step 2: Convert to fraction form
    450,485.34/621,399.48 = 297,523.83/x
  3. Step 3: Cross multiply
    450,485.34x = 621,399.48 × 297,523.83
  4. Step 4: Simplify right side
    450,485.34x = 184,881,153,249.61
  5. Step 5: Solve for x
    x = 184,881,153,249.61/450,485.34
  6. Step 6: Final answer
    x = 410,404.37

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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.