Home / 1,206,405.39-1,665,485.79-930,159.90

Finding the Fourth Proportional to 1,206,405.39, 1,665,485.79 and 930,159.90

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Solution

The fourth proportional to 1,206,405.39, 1,665,485.79 and 930,159.90 is: 1,284,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,405.39 : 1,665,485.79 = 930,159.90 : x
  2. Step 2: Convert to fraction form
    1,206,405.39/1,665,485.79 = 930,159.90/x
  3. Step 3: Cross multiply
    1,206,405.39x = 1,665,485.79 × 930,159.90
  4. Step 4: Simplify right side
    1,206,405.39x = 1,549,168,095,877.82
  5. Step 5: Solve for x
    x = 1,549,168,095,877.82/1,206,405.39
  6. Step 6: Final answer
    x = 1,284,119.01

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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.