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Finding the Fourth Proportional to 802,107.60, 1,106,803.12 and 479,700.04

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Solution

The fourth proportional to 802,107.60, 1,106,803.12 and 479,700.04 is: 661,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,107.60 : 1,106,803.12 = 479,700.04 : x
  2. Step 2: Convert to fraction form
    802,107.60/1,106,803.12 = 479,700.04/x
  3. Step 3: Cross multiply
    802,107.60x = 1,106,803.12 × 479,700.04
  4. Step 4: Simplify right side
    802,107.60x = 530,933,500,936.13
  5. Step 5: Solve for x
    x = 530,933,500,936.13/802,107.60
  6. Step 6: Final answer
    x = 661,923.04

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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.