Home / 688,164.88-949,743.84-401,755.36

Finding the Fourth Proportional to 688,164.88, 949,743.84 and 401,755.36

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Solution

The fourth proportional to 688,164.88, 949,743.84 and 401,755.36 is: 554,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,164.88 : 949,743.84 = 401,755.36 : x
  2. Step 2: Convert to fraction form
    688,164.88/949,743.84 = 401,755.36/x
  3. Step 3: Cross multiply
    688,164.88x = 949,743.84 × 401,755.36
  4. Step 4: Simplify right side
    688,164.88x = 381,564,678,346.98
  5. Step 5: Solve for x
    x = 381,564,678,346.98/688,164.88
  6. Step 6: Final answer
    x = 554,466.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.