Home / 680,346.12-1,020,851.14-427,745.36

Finding the Fourth Proportional to 680,346.12, 1,020,851.14 and 427,745.36

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Solution

The fourth proportional to 680,346.12, 1,020,851.14 and 427,745.36 is: 641,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,346.12 : 1,020,851.14 = 427,745.36 : x
  2. Step 2: Convert to fraction form
    680,346.12/1,020,851.14 = 427,745.36/x
  3. Step 3: Cross multiply
    680,346.12x = 1,020,851.14 × 427,745.36
  4. Step 4: Simplify right side
    680,346.12x = 436,664,338,385.71
  5. Step 5: Solve for x
    x = 436,664,338,385.71/680,346.12
  6. Step 6: Final answer
    x = 641,826.75

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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.