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Finding the Fourth Proportional to 578,369.52, 798,149.76 and 323,720.64

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Solution

The fourth proportional to 578,369.52, 798,149.76 and 323,720.64 is: 446,734.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,369.52 : 798,149.76 = 323,720.64 : x
  2. Step 2: Convert to fraction form
    578,369.52/798,149.76 = 323,720.64/x
  3. Step 3: Cross multiply
    578,369.52x = 798,149.76 × 323,720.64
  4. Step 4: Simplify right side
    578,369.52x = 258,377,551,123.05
  5. Step 5: Solve for x
    x = 258,377,551,123.05/578,369.52
  6. Step 6: Final answer
    x = 446,734.38

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1.5x scale

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.