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Finding the Fourth Proportional to 635,751.60, 953,141.40 and 320,434.80

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Solution

The fourth proportional to 635,751.60, 953,141.40 and 320,434.80 is: 480,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,751.60 : 953,141.40 = 320,434.80 : x
  2. Step 2: Convert to fraction form
    635,751.60/953,141.40 = 320,434.80/x
  3. Step 3: Cross multiply
    635,751.60x = 953,141.40 × 320,434.80
  4. Step 4: Simplify right side
    635,751.60x = 305,419,673,880.72
  5. Step 5: Solve for x
    x = 305,419,673,880.72/635,751.60
  6. Step 6: Final answer
    x = 480,407.24

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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.