Home / 769,828.60-1,152,993.30-486,393.40

Finding the Fourth Proportional to 769,828.60, 1,152,993.30 and 486,393.40

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Solution

The fourth proportional to 769,828.60, 1,152,993.30 and 486,393.40 is: 728,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,828.60 : 1,152,993.30 = 486,393.40 : x
  2. Step 2: Convert to fraction form
    769,828.60/1,152,993.30 = 486,393.40/x
  3. Step 3: Cross multiply
    769,828.60x = 1,152,993.30 × 486,393.40
  4. Step 4: Simplify right side
    769,828.60x = 560,808,331,364.22
  5. Step 5: Solve for x
    x = 560,808,331,364.22/769,828.60
  6. Step 6: Final answer
    x = 728,484.67

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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.