Home / 1,178,976.70-1,768,809.50-380,240.56

Finding the Fourth Proportional to 1,178,976.70, 1,768,809.50 and 380,240.56

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Solution

The fourth proportional to 1,178,976.70, 1,768,809.50 and 380,240.56 is: 570,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,976.70 : 1,768,809.50 = 380,240.56 : x
  2. Step 2: Convert to fraction form
    1,178,976.70/1,768,809.50 = 380,240.56/x
  3. Step 3: Cross multiply
    1,178,976.70x = 1,768,809.50 × 380,240.56
  4. Step 4: Simplify right side
    1,178,976.70x = 672,573,104,068.07
  5. Step 5: Solve for x
    x = 672,573,104,068.07/1,178,976.70
  6. Step 6: Final answer
    x = 570,471.92

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1.5x scale

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.