Home / 1,178,981.64-1,768,816.92-380,245.50

Finding the Fourth Proportional to 1,178,981.64, 1,768,816.92 and 380,245.50

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Solution

The fourth proportional to 1,178,981.64, 1,768,816.92 and 380,245.50 is: 570,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,981.64 : 1,768,816.92 = 380,245.50 : x
  2. Step 2: Convert to fraction form
    1,178,981.64/1,768,816.92 = 380,245.50/x
  3. Step 3: Cross multiply
    1,178,981.64x = 1,768,816.92 × 380,245.50
  4. Step 4: Simplify right side
    1,178,981.64x = 672,584,674,153.86
  5. Step 5: Solve for x
    x = 672,584,674,153.86/1,178,981.64
  6. Step 6: Final answer
    x = 570,479.35

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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.