Home / 1,384,392.40-2,077,279.80-785,813.20

Finding the Fourth Proportional to 1,384,392.40, 2,077,279.80 and 785,813.20

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Solution

The fourth proportional to 1,384,392.40, 2,077,279.80 and 785,813.20 is: 1,179,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,392.40 : 2,077,279.80 = 785,813.20 : x
  2. Step 2: Convert to fraction form
    1,384,392.40/2,077,279.80 = 785,813.20/x
  3. Step 3: Cross multiply
    1,384,392.40x = 2,077,279.80 × 785,813.20
  4. Step 4: Simplify right side
    1,384,392.40x = 1,632,353,886,933.36
  5. Step 5: Solve for x
    x = 1,632,353,886,933.36/1,384,392.40
  6. Step 6: Final answer
    x = 1,179,112.14

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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.