Home / 682,711.20-1,024,844.40-402,386.40

Finding the Fourth Proportional to 682,711.20, 1,024,844.40 and 402,386.40

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Solution

The fourth proportional to 682,711.20, 1,024,844.40 and 402,386.40 is: 604,037.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,711.20 : 1,024,844.40 = 402,386.40 : x
  2. Step 2: Convert to fraction form
    682,711.20/1,024,844.40 = 402,386.40/x
  3. Step 3: Cross multiply
    682,711.20x = 1,024,844.40 × 402,386.40
  4. Step 4: Simplify right side
    682,711.20x = 412,383,448,676.16
  5. Step 5: Solve for x
    x = 412,383,448,676.16/682,711.20
  6. Step 6: Final answer
    x = 604,037.91

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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.