Home / 403,780.20-605,670.30-401,015.40

Finding the Fourth Proportional to 403,780.20, 605,670.30 and 401,015.40

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Solution

The fourth proportional to 403,780.20, 605,670.30 and 401,015.40 is: 601,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,780.20 : 605,670.30 = 401,015.40 : x
  2. Step 2: Convert to fraction form
    403,780.20/605,670.30 = 401,015.40/x
  3. Step 3: Cross multiply
    403,780.20x = 605,670.30 × 401,015.40
  4. Step 4: Simplify right side
    403,780.20x = 242,883,117,622.62
  5. Step 5: Solve for x
    x = 242,883,117,622.62/403,780.20
  6. Step 6: Final answer
    x = 601,523.10

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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.