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Finding the Fourth Proportional to 707,759.64, 1,061,529.84 and 388,068.84

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Solution

The fourth proportional to 707,759.64, 1,061,529.84 and 388,068.84 is: 582,043.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,759.64 : 1,061,529.84 = 388,068.84 : x
  2. Step 2: Convert to fraction form
    707,759.64/1,061,529.84 = 388,068.84/x
  3. Step 3: Cross multiply
    707,759.64x = 1,061,529.84 × 388,068.84
  4. Step 4: Simplify right side
    707,759.64x = 411,946,653,634.19
  5. Step 5: Solve for x
    x = 411,946,653,634.19/707,759.64
  6. Step 6: Final answer
    x = 582,043.15

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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.