Home / 1,200,498.85-1,800,751.37-490,526.90

Finding the Fourth Proportional to 1,200,498.85, 1,800,751.37 and 490,526.90

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Solution

The fourth proportional to 1,200,498.85, 1,800,751.37 and 490,526.90 is: 735,791.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,498.85 : 1,800,751.37 = 490,526.90 : x
  2. Step 2: Convert to fraction form
    1,200,498.85/1,800,751.37 = 490,526.90/x
  3. Step 3: Cross multiply
    1,200,498.85x = 1,800,751.37 × 490,526.90
  4. Step 4: Simplify right side
    1,200,498.85x = 883,316,982,493.28
  5. Step 5: Solve for x
    x = 883,316,982,493.28/1,200,498.85
  6. Step 6: Final answer
    x = 735,791.61

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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.