Home / 739,937-1,021,113.97-400,405.25

Finding the Fourth Proportional to 739,937, 1,021,113.97 and 400,405.25

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Solution

The fourth proportional to 739,937, 1,021,113.97 and 400,405.25 is: 552,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,937 : 1,021,113.97 = 400,405.25 : x
  2. Step 2: Convert to fraction form
    739,937/1,021,113.97 = 400,405.25/x
  3. Step 3: Cross multiply
    739,937x = 1,021,113.97 × 400,405.25
  4. Step 4: Simplify right side
    739,937x = 408,859,394,436.34
  5. Step 5: Solve for x
    x = 408,859,394,436.34/739,937
  6. Step 6: Final answer
    x = 552,559.74

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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.