Home / 739,935-1,021,117.59-400,410.54

Finding the Fourth Proportional to 739,935, 1,021,117.59 and 400,410.54

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Solution

The fourth proportional to 739,935, 1,021,117.59 and 400,410.54 is: 552,570.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,935 : 1,021,117.59 = 400,410.54 : x
  2. Step 2: Convert to fraction form
    739,935/1,021,117.59 = 400,410.54/x
  3. Step 3: Cross multiply
    739,935x = 1,021,117.59 × 400,410.54
  4. Step 4: Simplify right side
    739,935x = 408,866,245,615.40
  5. Step 5: Solve for x
    x = 408,866,245,615.40/739,935
  6. Step 6: Final answer
    x = 552,570.49

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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.