Home / 1,186,124.80-1,780,122.24-438,384.64

Finding the Fourth Proportional to 1,186,124.80, 1,780,122.24 and 438,384.64

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Solution

The fourth proportional to 1,186,124.80, 1,780,122.24 and 438,384.64 is: 657,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,124.80 : 1,780,122.24 = 438,384.64 : x
  2. Step 2: Convert to fraction form
    1,186,124.80/1,780,122.24 = 438,384.64/x
  3. Step 3: Cross multiply
    1,186,124.80x = 1,780,122.24 × 438,384.64
  4. Step 4: Simplify right side
    1,186,124.80x = 780,378,247,338.39
  5. Step 5: Solve for x
    x = 780,378,247,338.39/1,186,124.80
  6. Step 6: Final answer
    x = 657,922.55

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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.