Home / 634,938.88-876,186.78-348,453.28

Finding the Fourth Proportional to 634,938.88, 876,186.78 and 348,453.28

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Solution

The fourth proportional to 634,938.88, 876,186.78 and 348,453.28 is: 480,849.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,938.88 : 876,186.78 = 348,453.28 : x
  2. Step 2: Convert to fraction form
    634,938.88/876,186.78 = 348,453.28/x
  3. Step 3: Cross multiply
    634,938.88x = 876,186.78 × 348,453.28
  4. Step 4: Simplify right side
    634,938.88x = 305,310,157,383.64
  5. Step 5: Solve for x
    x = 305,310,157,383.64/634,938.88
  6. Step 6: Final answer
    x = 480,849.68

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1.5x scale

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.