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Finding the Fourth Proportional to 536,007.75, 739,479.72 and 306,441.69

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Solution

The fourth proportional to 536,007.75, 739,479.72 and 306,441.69 is: 422,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,007.75 : 739,479.72 = 306,441.69 : x
  2. Step 2: Convert to fraction form
    536,007.75/739,479.72 = 306,441.69/x
  3. Step 3: Cross multiply
    536,007.75x = 739,479.72 × 306,441.69
  4. Step 4: Simplify right side
    536,007.75x = 226,607,415,117.53
  5. Step 5: Solve for x
    x = 226,607,415,117.53/536,007.75
  6. Step 6: Final answer
    x = 422,768.92

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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.