Home / 1,119,736.80-1,679,597.52-278,287.20

Finding the Fourth Proportional to 1,119,736.80, 1,679,597.52 and 278,287.20

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Solution

The fourth proportional to 1,119,736.80, 1,679,597.52 and 278,287.20 is: 417,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,736.80 : 1,679,597.52 = 278,287.20 : x
  2. Step 2: Convert to fraction form
    1,119,736.80/1,679,597.52 = 278,287.20/x
  3. Step 3: Cross multiply
    1,119,736.80x = 1,679,597.52 × 278,287.20
  4. Step 4: Simplify right side
    1,119,736.80x = 467,410,490,967.74
  5. Step 5: Solve for x
    x = 467,410,490,967.74/1,119,736.80
  6. Step 6: Final answer
    x = 417,428.89

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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.