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Finding the Fourth Proportional to 578,373.96, 798,155.94 and 323,725.20

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Solution

The fourth proportional to 578,373.96, 798,155.94 and 323,725.20 is: 446,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,373.96 : 798,155.94 = 323,725.20 : x
  2. Step 2: Convert to fraction form
    578,373.96/798,155.94 = 323,725.20/x
  3. Step 3: Cross multiply
    578,373.96x = 798,155.94 × 323,725.20
  4. Step 4: Simplify right side
    578,373.96x = 258,383,191,307.69
  5. Step 5: Solve for x
    x = 258,383,191,307.69/578,373.96
  6. Step 6: Final answer
    x = 446,740.71

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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.