Home / 678,519.10-1,017,130.65-251,940.70

Finding the Fourth Proportional to 678,519.10, 1,017,130.65 and 251,940.70

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Solution

The fourth proportional to 678,519.10, 1,017,130.65 and 251,940.70 is: 377,670.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,519.10 : 1,017,130.65 = 251,940.70 : x
  2. Step 2: Convert to fraction form
    678,519.10/1,017,130.65 = 251,940.70/x
  3. Step 3: Cross multiply
    678,519.10x = 1,017,130.65 × 251,940.70
  4. Step 4: Simplify right side
    678,519.10x = 256,256,607,952.46
  5. Step 5: Solve for x
    x = 256,256,607,952.46/678,519.10
  6. Step 6: Final answer
    x = 377,670.44

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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.