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Finding the Fourth Proportional to 455,430.24, 628,627.20 and 264,529.44

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Solution

The fourth proportional to 455,430.24, 628,627.20 and 264,529.44 is: 365,128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,430.24 : 628,627.20 = 264,529.44 : x
  2. Step 2: Convert to fraction form
    455,430.24/628,627.20 = 264,529.44/x
  3. Step 3: Cross multiply
    455,430.24x = 628,627.20 × 264,529.44
  4. Step 4: Simplify right side
    455,430.24x = 166,290,401,184.77
  5. Step 5: Solve for x
    x = 166,290,401,184.77/455,430.24
  6. Step 6: Final answer
    x = 365,128.15

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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.