Home / 879,899.90-1,214,261.87-477,491.90

Finding the Fourth Proportional to 879,899.90, 1,214,261.87 and 477,491.90

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Solution

The fourth proportional to 879,899.90, 1,214,261.87 and 477,491.90 is: 658,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,899.90 : 1,214,261.87 = 477,491.90 : x
  2. Step 2: Convert to fraction form
    879,899.90/1,214,261.87 = 477,491.90/x
  3. Step 3: Cross multiply
    879,899.90x = 1,214,261.87 × 477,491.90
  4. Step 4: Simplify right side
    879,899.90x = 579,800,198,945.08
  5. Step 5: Solve for x
    x = 579,800,198,945.08/879,899.90
  6. Step 6: Final answer
    x = 658,938.82

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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.