Home / 1,380,909.75-2,071,390.55-383,663.67

Finding the Fourth Proportional to 1,380,909.75, 2,071,390.55 and 383,663.67

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Solution

The fourth proportional to 1,380,909.75, 2,071,390.55 and 383,663.67 is: 575,502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,909.75 : 2,071,390.55 = 383,663.67 : x
  2. Step 2: Convert to fraction form
    1,380,909.75/2,071,390.55 = 383,663.67/x
  3. Step 3: Cross multiply
    1,380,909.75x = 2,071,390.55 × 383,663.67
  4. Step 4: Simplify right side
    1,380,909.75x = 794,717,298,498.00
  5. Step 5: Solve for x
    x = 794,717,298,498.00/1,380,909.75
  6. Step 6: Final answer
    x = 575,502.71

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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.