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Finding the Fourth Proportional to 550,014.30, 825,021.45 and 455,535.90

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Solution

The fourth proportional to 550,014.30, 825,021.45 and 455,535.90 is: 683,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,014.30 : 825,021.45 = 455,535.90 : x
  2. Step 2: Convert to fraction form
    550,014.30/825,021.45 = 455,535.90/x
  3. Step 3: Cross multiply
    550,014.30x = 825,021.45 × 455,535.90
  4. Step 4: Simplify right side
    550,014.30x = 375,826,888,745.06
  5. Step 5: Solve for x
    x = 375,826,888,745.06/550,014.30
  6. Step 6: Final answer
    x = 683,303.85

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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.