Home / 723,572.24-1,086,008.88-386,900.67

Finding the Fourth Proportional to 723,572.24, 1,086,008.88 and 386,900.67

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Solution

The fourth proportional to 723,572.24, 1,086,008.88 and 386,900.67 is: 580,698.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,572.24 : 1,086,008.88 = 386,900.67 : x
  2. Step 2: Convert to fraction form
    723,572.24/1,086,008.88 = 386,900.67/x
  3. Step 3: Cross multiply
    723,572.24x = 1,086,008.88 × 386,900.67
  4. Step 4: Simplify right side
    723,572.24x = 420,177,563,297.95
  5. Step 5: Solve for x
    x = 420,177,563,297.95/723,572.24
  6. Step 6: Final answer
    x = 580,698.84

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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.