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Finding the Fourth Proportional to 455,623.56, 628,762.56 and 248,894.80

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Solution

The fourth proportional to 455,623.56, 628,762.56 and 248,894.80 is: 343,475.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,623.56 : 628,762.56 = 248,894.80 : x
  2. Step 2: Convert to fraction form
    455,623.56/628,762.56 = 248,894.80/x
  3. Step 3: Cross multiply
    455,623.56x = 628,762.56 × 248,894.80
  4. Step 4: Simplify right side
    455,623.56x = 156,495,731,618.69
  5. Step 5: Solve for x
    x = 156,495,731,618.69/455,623.56
  6. Step 6: Final answer
    x = 343,475.94

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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.