Home / 714,913-1,072,042.46-426,855.38

Finding the Fourth Proportional to 714,913, 1,072,042.46 and 426,855.38

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Solution

The fourth proportional to 714,913, 1,072,042.46 and 426,855.38 is: 640,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,913 : 1,072,042.46 = 426,855.38 : x
  2. Step 2: Convert to fraction form
    714,913/1,072,042.46 = 426,855.38/x
  3. Step 3: Cross multiply
    714,913x = 1,072,042.46 × 426,855.38
  4. Step 4: Simplify right side
    714,913x = 457,607,091,639.44
  5. Step 5: Solve for x
    x = 457,607,091,639.44/714,913
  6. Step 6: Final answer
    x = 640,087.80

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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.