Home / 688,049.28-949,501.44-386,241.12

Finding the Fourth Proportional to 688,049.28, 949,501.44 and 386,241.12

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Solution

The fourth proportional to 688,049.28, 949,501.44 and 386,241.12 is: 533,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,049.28 : 949,501.44 = 386,241.12 : x
  2. Step 2: Convert to fraction form
    688,049.28/949,501.44 = 386,241.12/x
  3. Step 3: Cross multiply
    688,049.28x = 949,501.44 × 386,241.12
  4. Step 4: Simplify right side
    688,049.28x = 366,736,499,627.21
  5. Step 5: Solve for x
    x = 366,736,499,627.21/688,049.28
  6. Step 6: Final answer
    x = 533,009.06

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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.