Home / 790,450.22-1,090,821.95-427,872.96

Finding the Fourth Proportional to 790,450.22, 1,090,821.95 and 427,872.96

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Solution

The fourth proportional to 790,450.22, 1,090,821.95 and 427,872.96 is: 590,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,450.22 : 1,090,821.95 = 427,872.96 : x
  2. Step 2: Convert to fraction form
    790,450.22/1,090,821.95 = 427,872.96/x
  3. Step 3: Cross multiply
    790,450.22x = 1,090,821.95 × 427,872.96
  4. Step 4: Simplify right side
    790,450.22x = 466,733,216,579.47
  5. Step 5: Solve for x
    x = 466,733,216,579.47/790,450.22
  6. Step 6: Final answer
    x = 590,465.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.