Home / 411,741.20-618,648.60-262,053.20

Finding the Fourth Proportional to 411,741.20, 618,648.60 and 262,053.20

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Solution

The fourth proportional to 411,741.20, 618,648.60 and 262,053.20 is: 393,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,741.20 : 618,648.60 = 262,053.20 : x
  2. Step 2: Convert to fraction form
    411,741.20/618,648.60 = 262,053.20/x
  3. Step 3: Cross multiply
    411,741.20x = 618,648.60 × 262,053.20
  4. Step 4: Simplify right side
    411,741.20x = 162,118,845,305.52
  5. Step 5: Solve for x
    x = 162,118,845,305.52/411,741.20
  6. Step 6: Final answer
    x = 393,739.67

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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.