Home / 498,736.77-688,261.13-283,890.66

Finding the Fourth Proportional to 498,736.77, 688,261.13 and 283,890.66

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Solution

The fourth proportional to 498,736.77, 688,261.13 and 283,890.66 is: 391,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,736.77 : 688,261.13 = 283,890.66 : x
  2. Step 2: Convert to fraction form
    498,736.77/688,261.13 = 283,890.66/x
  3. Step 3: Cross multiply
    498,736.77x = 688,261.13 × 283,890.66
  4. Step 4: Simplify right side
    498,736.77x = 195,390,905,028.59
  5. Step 5: Solve for x
    x = 195,390,905,028.59/498,736.77
  6. Step 6: Final answer
    x = 391,771.61

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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.