Home / 639,108.47-881,969.02-352,628.53

Finding the Fourth Proportional to 639,108.47, 881,969.02 and 352,628.53

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Solution

The fourth proportional to 639,108.47, 881,969.02 and 352,628.53 is: 486,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,108.47 : 881,969.02 = 352,628.53 : x
  2. Step 2: Convert to fraction form
    639,108.47/881,969.02 = 352,628.53/x
  3. Step 3: Cross multiply
    639,108.47x = 881,969.02 × 352,628.53
  4. Step 4: Simplify right side
    639,108.47x = 311,007,439,028.14
  5. Step 5: Solve for x
    x = 311,007,439,028.14/639,108.47
  6. Step 6: Final answer
    x = 486,627.00

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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.