Home / 1,187,009.20-1,780,470.60-476,844.40

Finding the Fourth Proportional to 1,187,009.20, 1,780,470.60 and 476,844.40

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Solution

The fourth proportional to 1,187,009.20, 1,780,470.60 and 476,844.40 is: 715,249.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,009.20 : 1,780,470.60 = 476,844.40 : x
  2. Step 2: Convert to fraction form
    1,187,009.20/1,780,470.60 = 476,844.40/x
  3. Step 3: Cross multiply
    1,187,009.20x = 1,780,470.60 × 476,844.40
  4. Step 4: Simplify right side
    1,187,009.20x = 849,007,434,974.64
  5. Step 5: Solve for x
    x = 849,007,434,974.64/1,187,009.20
  6. Step 6: Final answer
    x = 715,249.25

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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.