Home / 648,278.20-971,639.70-332,572.60

Finding the Fourth Proportional to 648,278.20, 971,639.70 and 332,572.60

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Solution

The fourth proportional to 648,278.20, 971,639.70 and 332,572.60 is: 498,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,278.20 : 971,639.70 = 332,572.60 : x
  2. Step 2: Convert to fraction form
    648,278.20/971,639.70 = 332,572.60/x
  3. Step 3: Cross multiply
    648,278.20x = 971,639.70 × 332,572.60
  4. Step 4: Simplify right side
    648,278.20x = 323,140,741,292.22
  5. Step 5: Solve for x
    x = 323,140,741,292.22/648,278.20
  6. Step 6: Final answer
    x = 498,459.98

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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.