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Finding the Fourth Proportional to 384,089.20, 576,133.80 and 353,676.40

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Solution

The fourth proportional to 384,089.20, 576,133.80 and 353,676.40 is: 530,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,089.20 : 576,133.80 = 353,676.40 : x
  2. Step 2: Convert to fraction form
    384,089.20/576,133.80 = 353,676.40/x
  3. Step 3: Cross multiply
    384,089.20x = 576,133.80 × 353,676.40
  4. Step 4: Simplify right side
    384,089.20x = 203,764,928,302.32
  5. Step 5: Solve for x
    x = 203,764,928,302.32/384,089.20
  6. Step 6: Final answer
    x = 530,514.60

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1.5x scale

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.