Home / 553,108.82-829,921.44-286,724.03

Finding the Fourth Proportional to 553,108.82, 829,921.44 and 286,724.03

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Solution

The fourth proportional to 553,108.82, 829,921.44 and 286,724.03 is: 430,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,108.82 : 829,921.44 = 286,724.03 : x
  2. Step 2: Convert to fraction form
    553,108.82/829,921.44 = 286,724.03/x
  3. Step 3: Cross multiply
    553,108.82x = 829,921.44 × 286,724.03
  4. Step 4: Simplify right side
    553,108.82x = 237,958,419,860.20
  5. Step 5: Solve for x
    x = 237,958,419,860.20/553,108.82
  6. Step 6: Final answer
    x = 430,219.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.