Home / 486,933.20-731,628.60-309,525.20

Finding the Fourth Proportional to 486,933.20, 731,628.60 and 309,525.20

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Solution

The fourth proportional to 486,933.20, 731,628.60 and 309,525.20 is: 465,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,933.20 : 731,628.60 = 309,525.20 : x
  2. Step 2: Convert to fraction form
    486,933.20/731,628.60 = 309,525.20/x
  3. Step 3: Cross multiply
    486,933.20x = 731,628.60 × 309,525.20
  4. Step 4: Simplify right side
    486,933.20x = 226,457,488,740.72
  5. Step 5: Solve for x
    x = 226,457,488,740.72/486,933.20
  6. Step 6: Final answer
    x = 465,068.90

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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.