Home / 435,923.76-653,897.91-120,380.67

Finding the Fourth Proportional to 435,923.76, 653,897.91 and 120,380.67

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Solution

The fourth proportional to 435,923.76, 653,897.91 and 120,380.67 is: 180,574.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,923.76 : 653,897.91 = 120,380.67 : x
  2. Step 2: Convert to fraction form
    435,923.76/653,897.91 = 120,380.67/x
  3. Step 3: Cross multiply
    435,923.76x = 653,897.91 × 120,380.67
  4. Step 4: Simplify right side
    435,923.76x = 78,716,668,517.40
  5. Step 5: Solve for x
    x = 78,716,668,517.40/435,923.76
  6. Step 6: Final answer
    x = 180,574.39

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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.