Home / 1,351,208.23-1,864,709.19-739,386.78

Finding the Fourth Proportional to 1,351,208.23, 1,864,709.19 and 739,386.78

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Solution

The fourth proportional to 1,351,208.23, 1,864,709.19 and 739,386.78 is: 1,020,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,208.23 : 1,864,709.19 = 739,386.78 : x
  2. Step 2: Convert to fraction form
    1,351,208.23/1,864,709.19 = 739,386.78/x
  3. Step 3: Cross multiply
    1,351,208.23x = 1,864,709.19 × 739,386.78
  4. Step 4: Simplify right side
    1,351,208.23x = 1,378,741,319,933.57
  5. Step 5: Solve for x
    x = 1,378,741,319,933.57/1,351,208.23
  6. Step 6: Final answer
    x = 1,020,376.64

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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.