Home / 403,824.72-605,715.28-123,320.16

Finding the Fourth Proportional to 403,824.72, 605,715.28 and 123,320.16

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Solution

The fourth proportional to 403,824.72, 605,715.28 and 123,320.16 is: 184,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,824.72 : 605,715.28 = 123,320.16 : x
  2. Step 2: Convert to fraction form
    403,824.72/605,715.28 = 123,320.16/x
  3. Step 3: Cross multiply
    403,824.72x = 605,715.28 × 123,320.16
  4. Step 4: Simplify right side
    403,824.72x = 74,696,905,244.04
  5. Step 5: Solve for x
    x = 74,696,905,244.04/403,824.72
  6. Step 6: Final answer
    x = 184,973.58

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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.