Home / 1,384,436.40-2,077,583.40-485,876.40

Finding the Fourth Proportional to 1,384,436.40, 2,077,583.40 and 485,876.40

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Solution

The fourth proportional to 1,384,436.40, 2,077,583.40 and 485,876.40 is: 729,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,436.40 : 2,077,583.40 = 485,876.40 : x
  2. Step 2: Convert to fraction form
    1,384,436.40/2,077,583.40 = 485,876.40/x
  3. Step 3: Cross multiply
    1,384,436.40x = 2,077,583.40 × 485,876.40
  4. Step 4: Simplify right side
    1,384,436.40x = 1,009,448,743,091.76
  5. Step 5: Solve for x
    x = 1,009,448,743,091.76/1,384,436.40
  6. Step 6: Final answer
    x = 729,140.57

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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.