Home / 682,361.40-1,021,986.90-402,425.40

Finding the Fourth Proportional to 682,361.40, 1,021,986.90 and 402,425.40

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Solution

The fourth proportional to 682,361.40, 1,021,986.90 and 402,425.40 is: 602,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,361.40 : 1,021,986.90 = 402,425.40 : x
  2. Step 2: Convert to fraction form
    682,361.40/1,021,986.90 = 402,425.40/x
  3. Step 3: Cross multiply
    682,361.40x = 1,021,986.90 × 402,425.40
  4. Step 4: Simplify right side
    682,361.40x = 411,273,487,027.26
  5. Step 5: Solve for x
    x = 411,273,487,027.26/682,361.40
  6. Step 6: Final answer
    x = 602,720.91

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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.