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Finding the Fourth Proportional to 674,038.05, 930,049.24 and 383,632.45

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Solution

The fourth proportional to 674,038.05, 930,049.24 and 383,632.45 is: 529,342.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,038.05 : 930,049.24 = 383,632.45 : x
  2. Step 2: Convert to fraction form
    674,038.05/930,049.24 = 383,632.45/x
  3. Step 3: Cross multiply
    674,038.05x = 930,049.24 × 383,632.45
  4. Step 4: Simplify right side
    674,038.05x = 356,797,065,277.63
  5. Step 5: Solve for x
    x = 356,797,065,277.63/674,038.05
  6. Step 6: Final answer
    x = 529,342.62

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Double scale
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Similar ratio
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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.