Home / 1,178,978.45-1,768,812.12-380,242.31

Finding the Fourth Proportional to 1,178,978.45, 1,768,812.12 and 380,242.31

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Solution

The fourth proportional to 1,178,978.45, 1,768,812.12 and 380,242.31 is: 570,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,978.45 : 1,768,812.12 = 380,242.31 : x
  2. Step 2: Convert to fraction form
    1,178,978.45/1,768,812.12 = 380,242.31/x
  3. Step 3: Cross multiply
    1,178,978.45x = 1,768,812.12 × 380,242.31
  4. Step 4: Simplify right side
    1,178,978.45x = 672,577,197,620.74
  5. Step 5: Solve for x
    x = 672,577,197,620.74/1,178,978.45
  6. Step 6: Final answer
    x = 570,474.55

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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.