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Finding the Fourth Proportional to 403,631.04, 605,424 and 123,126.24

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Solution

The fourth proportional to 403,631.04, 605,424 and 123,126.24 is: 184,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,631.04 : 605,424 = 123,126.24 : x
  2. Step 2: Convert to fraction form
    403,631.04/605,424 = 123,126.24/x
  3. Step 3: Cross multiply
    403,631.04x = 605,424 × 123,126.24
  4. Step 4: Simplify right side
    403,631.04x = 74,543,580,725.76
  5. Step 5: Solve for x
    x = 74,543,580,725.76/403,631.04
  6. Step 6: Final answer
    x = 184,682.48

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1.5x scale

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.