Home / 455,660.10-628,887.70-264,784.20

Finding the Fourth Proportional to 455,660.10, 628,887.70 and 264,784.20

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Solution

The fourth proportional to 455,660.10, 628,887.70 and 264,784.20 is: 365,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,660.10 : 628,887.70 = 264,784.20 : x
  2. Step 2: Convert to fraction form
    455,660.10/628,887.70 = 264,784.20/x
  3. Step 3: Cross multiply
    455,660.10x = 628,887.70 × 264,784.20
  4. Step 4: Simplify right side
    455,660.10x = 166,519,526,534.34
  5. Step 5: Solve for x
    x = 166,519,526,534.34/455,660.10
  6. Step 6: Final answer
    x = 365,446.80

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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.