Home / 682,905.20-1,025,135.40-402,580.40

Finding the Fourth Proportional to 682,905.20, 1,025,135.40 and 402,580.40

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Solution

The fourth proportional to 682,905.20, 1,025,135.40 and 402,580.40 is: 604,329.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,905.20 : 1,025,135.40 = 402,580.40 : x
  2. Step 2: Convert to fraction form
    682,905.20/1,025,135.40 = 402,580.40/x
  3. Step 3: Cross multiply
    682,905.20x = 1,025,135.40 × 402,580.40
  4. Step 4: Simplify right side
    682,905.20x = 412,699,419,386.16
  5. Step 5: Solve for x
    x = 412,699,419,386.16/682,905.20
  6. Step 6: Final answer
    x = 604,329.00

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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.