Home / 722,390.40-1,083,909.60-249,415.20

Finding the Fourth Proportional to 722,390.40, 1,083,909.60 and 249,415.20

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Solution

The fourth proportional to 722,390.40, 1,083,909.60 and 249,415.20 is: 374,234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,390.40 : 1,083,909.60 = 249,415.20 : x
  2. Step 2: Convert to fraction form
    722,390.40/1,083,909.60 = 249,415.20/x
  3. Step 3: Cross multiply
    722,390.40x = 1,083,909.60 × 249,415.20
  4. Step 4: Simplify right side
    722,390.40x = 270,343,529,665.92
  5. Step 5: Solve for x
    x = 270,343,529,665.92/722,390.40
  6. Step 6: Final answer
    x = 374,234.67

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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.