Home / 1,203,145.80-1,804,830.06-393,534.81

Finding the Fourth Proportional to 1,203,145.80, 1,804,830.06 and 393,534.81

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Solution

The fourth proportional to 1,203,145.80, 1,804,830.06 and 393,534.81 is: 590,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,145.80 : 1,804,830.06 = 393,534.81 : x
  2. Step 2: Convert to fraction form
    1,203,145.80/1,804,830.06 = 393,534.81/x
  3. Step 3: Cross multiply
    1,203,145.80x = 1,804,830.06 × 393,534.81
  4. Step 4: Simplify right side
    1,203,145.80x = 710,263,454,744.39
  5. Step 5: Solve for x
    x = 710,263,454,744.39/1,203,145.80
  6. Step 6: Final answer
    x = 590,338.64

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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.