Home / 1,330,025.22-1,995,318.41-431,397.18

Finding the Fourth Proportional to 1,330,025.22, 1,995,318.41 and 431,397.18

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Solution

The fourth proportional to 1,330,025.22, 1,995,318.41 and 431,397.18 is: 647,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,025.22 : 1,995,318.41 = 431,397.18 : x
  2. Step 2: Convert to fraction form
    1,330,025.22/1,995,318.41 = 431,397.18/x
  3. Step 3: Cross multiply
    1,330,025.22x = 1,995,318.41 × 431,397.18
  4. Step 4: Simplify right side
    1,330,025.22x = 860,774,733,119.10
  5. Step 5: Solve for x
    x = 860,774,733,119.10/1,330,025.22
  6. Step 6: Final answer
    x = 647,186.78

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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.