Home / 1,326,483.55-1,990,112.91-427,905.46

Finding the Fourth Proportional to 1,326,483.55, 1,990,112.91 and 427,905.46

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Solution

The fourth proportional to 1,326,483.55, 1,990,112.91 and 427,905.46 is: 641,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,483.55 : 1,990,112.91 = 427,905.46 : x
  2. Step 2: Convert to fraction form
    1,326,483.55/1,990,112.91 = 427,905.46/x
  3. Step 3: Cross multiply
    1,326,483.55x = 1,990,112.91 × 427,905.46
  4. Step 4: Simplify right side
    1,326,483.55x = 851,580,180,205.49
  5. Step 5: Solve for x
    x = 851,580,180,205.49/1,326,483.55
  6. Step 6: Final answer
    x = 641,983.22

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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.