Home / 558,149.63-837,645.79-408,777.20

Finding the Fourth Proportional to 558,149.63, 837,645.79 and 408,777.20

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Solution

The fourth proportional to 558,149.63, 837,645.79 and 408,777.20 is: 613,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,149.63 : 837,645.79 = 408,777.20 : x
  2. Step 2: Convert to fraction form
    558,149.63/837,645.79 = 408,777.20/x
  3. Step 3: Cross multiply
    558,149.63x = 837,645.79 × 408,777.20
  4. Step 4: Simplify right side
    558,149.63x = 342,410,495,417.82
  5. Step 5: Solve for x
    x = 342,410,495,417.82/558,149.63
  6. Step 6: Final answer
    x = 613,474.37

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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.