Home / 1,555,980.40-2,334,043.56-756,308.72

Finding the Fourth Proportional to 1,555,980.40, 2,334,043.56 and 756,308.72

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Solution

The fourth proportional to 1,555,980.40, 2,334,043.56 and 756,308.72 is: 1,134,498.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,980.40 : 2,334,043.56 = 756,308.72 : x
  2. Step 2: Convert to fraction form
    1,555,980.40/2,334,043.56 = 756,308.72/x
  3. Step 3: Cross multiply
    1,555,980.40x = 2,334,043.56 × 756,308.72
  4. Step 4: Simplify right side
    1,555,980.40x = 1,765,257,497,287.84
  5. Step 5: Solve for x
    x = 1,765,257,497,287.84/1,555,980.40
  6. Step 6: Final answer
    x = 1,134,498.54

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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.