Home / 676,874.40-1,015,311.60-618,813.60

Finding the Fourth Proportional to 676,874.40, 1,015,311.60 and 618,813.60

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Solution

The fourth proportional to 676,874.40, 1,015,311.60 and 618,813.60 is: 928,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,874.40 : 1,015,311.60 = 618,813.60 : x
  2. Step 2: Convert to fraction form
    676,874.40/1,015,311.60 = 618,813.60/x
  3. Step 3: Cross multiply
    676,874.40x = 1,015,311.60 × 618,813.60
  4. Step 4: Simplify right side
    676,874.40x = 628,288,626,317.76
  5. Step 5: Solve for x
    x = 628,288,626,317.76/676,874.40
  6. Step 6: Final answer
    x = 928,220.40

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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.