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Finding the Fourth Proportional to 433,421.80, 650,132.70 and 291,704.20

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Solution

The fourth proportional to 433,421.80, 650,132.70 and 291,704.20 is: 437,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,421.80 : 650,132.70 = 291,704.20 : x
  2. Step 2: Convert to fraction form
    433,421.80/650,132.70 = 291,704.20/x
  3. Step 3: Cross multiply
    433,421.80x = 650,132.70 × 291,704.20
  4. Step 4: Simplify right side
    433,421.80x = 189,646,439,147.34
  5. Step 5: Solve for x
    x = 189,646,439,147.34/433,421.80
  6. Step 6: Final answer
    x = 437,556.30

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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.