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Finding the Fourth Proportional to 579,903.84, 799,913.53 and 383,670

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Solution

The fourth proportional to 579,903.84, 799,913.53 and 383,670 is: 529,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,903.84 : 799,913.53 = 383,670 : x
  2. Step 2: Convert to fraction form
    579,903.84/799,913.53 = 383,670/x
  3. Step 3: Cross multiply
    579,903.84x = 799,913.53 × 383,670
  4. Step 4: Simplify right side
    579,903.84x = 306,902,824,055.10
  5. Step 5: Solve for x
    x = 306,902,824,055.10/579,903.84
  6. Step 6: Final answer
    x = 529,230.54

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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.