Home / 674,624.21-930,979.82-384,235.72

Finding the Fourth Proportional to 674,624.21, 930,979.82 and 384,235.72

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Solution

The fourth proportional to 674,624.21, 930,979.82 and 384,235.72 is: 530,244.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,624.21 : 930,979.82 = 384,235.72 : x
  2. Step 2: Convert to fraction form
    674,624.21/930,979.82 = 384,235.72/x
  3. Step 3: Cross multiply
    674,624.21x = 930,979.82 × 384,235.72
  4. Step 4: Simplify right side
    674,624.21x = 357,715,700,076.31
  5. Step 5: Solve for x
    x = 357,715,700,076.31/674,624.21
  6. Step 6: Final answer
    x = 530,244.39

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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.