Home / 722,818.40-1,084,227.60-512,866.40

Finding the Fourth Proportional to 722,818.40, 1,084,227.60 and 512,866.40

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Solution

The fourth proportional to 722,818.40, 1,084,227.60 and 512,866.40 is: 769,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,818.40 : 1,084,227.60 = 512,866.40 : x
  2. Step 2: Convert to fraction form
    722,818.40/1,084,227.60 = 512,866.40/x
  3. Step 3: Cross multiply
    722,818.40x = 1,084,227.60 × 512,866.40
  4. Step 4: Simplify right side
    722,818.40x = 556,063,905,992.64
  5. Step 5: Solve for x
    x = 556,063,905,992.64/722,818.40
  6. Step 6: Final answer
    x = 769,299.60

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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.