Home / 988,750.80-1,482,834.60-389,512.80

Finding the Fourth Proportional to 988,750.80, 1,482,834.60 and 389,512.80

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Solution

The fourth proportional to 988,750.80, 1,482,834.60 and 389,512.80 is: 584,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,750.80 : 1,482,834.60 = 389,512.80 : x
  2. Step 2: Convert to fraction form
    988,750.80/1,482,834.60 = 389,512.80/x
  3. Step 3: Cross multiply
    988,750.80x = 1,482,834.60 × 389,512.80
  4. Step 4: Simplify right side
    988,750.80x = 577,583,056,982.88
  5. Step 5: Solve for x
    x = 577,583,056,982.88/988,750.80
  6. Step 6: Final answer
    x = 584,154.33

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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.