Home / 929,709.12-1,395,311.07-480,561.72

Finding the Fourth Proportional to 929,709.12, 1,395,311.07 and 480,561.72

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Solution

The fourth proportional to 929,709.12, 1,395,311.07 and 480,561.72 is: 721,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,709.12 : 1,395,311.07 = 480,561.72 : x
  2. Step 2: Convert to fraction form
    929,709.12/1,395,311.07 = 480,561.72/x
  3. Step 3: Cross multiply
    929,709.12x = 1,395,311.07 × 480,561.72
  4. Step 4: Simplify right side
    929,709.12x = 670,533,087,734.24
  5. Step 5: Solve for x
    x = 670,533,087,734.24/929,709.12
  6. Step 6: Final answer
    x = 721,228.90

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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.