Home / 739,950.50-1,021,138.98-400,426.04

Finding the Fourth Proportional to 739,950.50, 1,021,138.98 and 400,426.04

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Solution

The fourth proportional to 739,950.50, 1,021,138.98 and 400,426.04 is: 552,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,950.50 : 1,021,138.98 = 400,426.04 : x
  2. Step 2: Convert to fraction form
    739,950.50/1,021,138.98 = 400,426.04/x
  3. Step 3: Cross multiply
    739,950.50x = 1,021,138.98 × 400,426.04
  4. Step 4: Simplify right side
    739,950.50x = 408,890,638,051.04
  5. Step 5: Solve for x
    x = 408,890,638,051.04/739,950.50
  6. Step 6: Final answer
    x = 552,591.88

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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.