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Finding the Fourth Proportional to 637,728.39, 956,727.52 and 211,240.06

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Solution

The fourth proportional to 637,728.39, 956,727.52 and 211,240.06 is: 316,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,728.39 : 956,727.52 = 211,240.06 : x
  2. Step 2: Convert to fraction form
    637,728.39/956,727.52 = 211,240.06/x
  3. Step 3: Cross multiply
    637,728.39x = 956,727.52 × 211,240.06
  4. Step 4: Simplify right side
    637,728.39x = 202,099,175,808.53
  5. Step 5: Solve for x
    x = 202,099,175,808.53/637,728.39
  6. Step 6: Final answer
    x = 316,904.78

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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.