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Finding the Fourth Proportional to 403,459.92, 556,607.84 and 240,084

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Solution

The fourth proportional to 403,459.92, 556,607.84 and 240,084 is: 331,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,459.92 : 556,607.84 = 240,084 : x
  2. Step 2: Convert to fraction form
    403,459.92/556,607.84 = 240,084/x
  3. Step 3: Cross multiply
    403,459.92x = 556,607.84 × 240,084
  4. Step 4: Simplify right side
    403,459.92x = 133,632,635,458.14
  5. Step 5: Solve for x
    x = 133,632,635,458.14/403,459.92
  6. Step 6: Final answer
    x = 331,216.63

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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.