Home / 723,742.52-998,745.39-417,808.55

Finding the Fourth Proportional to 723,742.52, 998,745.39 and 417,808.55

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Solution

The fourth proportional to 723,742.52, 998,745.39 and 417,808.55 is: 576,564.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,742.52 : 998,745.39 = 417,808.55 : x
  2. Step 2: Convert to fraction form
    723,742.52/998,745.39 = 417,808.55/x
  3. Step 3: Cross multiply
    723,742.52x = 998,745.39 × 417,808.55
  4. Step 4: Simplify right side
    723,742.52x = 417,284,365,711.95
  5. Step 5: Solve for x
    x = 417,284,365,711.95/723,742.52
  6. Step 6: Final answer
    x = 576,564.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.