Home / 729,130.72-1,093,942.32-459,461.92

Finding the Fourth Proportional to 729,130.72, 1,093,942.32 and 459,461.92

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Solution

The fourth proportional to 729,130.72, 1,093,942.32 and 459,461.92 is: 689,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,130.72 : 1,093,942.32 = 459,461.92 : x
  2. Step 2: Convert to fraction form
    729,130.72/1,093,942.32 = 459,461.92/x
  3. Step 3: Cross multiply
    729,130.72x = 1,093,942.32 × 459,461.92
  4. Step 4: Simplify right side
    729,130.72x = 502,624,838,716.45
  5. Step 5: Solve for x
    x = 502,624,838,716.45/729,130.72
  6. Step 6: Final answer
    x = 689,348.05

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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.