Home / 1,230,209.55-1,845,314.33-689,911.20

Finding the Fourth Proportional to 1,230,209.55, 1,845,314.33 and 689,911.20

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Solution

The fourth proportional to 1,230,209.55, 1,845,314.33 and 689,911.20 is: 1,034,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,209.55 : 1,845,314.33 = 689,911.20 : x
  2. Step 2: Convert to fraction form
    1,230,209.55/1,845,314.33 = 689,911.20/x
  3. Step 3: Cross multiply
    1,230,209.55x = 1,845,314.33 × 689,911.20
  4. Step 4: Simplify right side
    1,230,209.55x = 1,273,103,023,787.50
  5. Step 5: Solve for x
    x = 1,273,103,023,787.50/1,230,209.55
  6. Step 6: Final answer
    x = 1,034,866.80

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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.