Home / 1,320,507.36-1,980,892.26-479,124.72

Finding the Fourth Proportional to 1,320,507.36, 1,980,892.26 and 479,124.72

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Solution

The fourth proportional to 1,320,507.36, 1,980,892.26 and 479,124.72 is: 718,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,507.36 : 1,980,892.26 = 479,124.72 : x
  2. Step 2: Convert to fraction form
    1,320,507.36/1,980,892.26 = 479,124.72/x
  3. Step 3: Cross multiply
    1,320,507.36x = 1,980,892.26 × 479,124.72
  4. Step 4: Simplify right side
    1,320,507.36x = 949,094,449,422.67
  5. Step 5: Solve for x
    x = 949,094,449,422.67/1,320,507.36
  6. Step 6: Final answer
    x = 718,734.69

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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.