Home / 1,434,955.58-1,980,328.44-790,375.61

Finding the Fourth Proportional to 1,434,955.58, 1,980,328.44 and 790,375.61

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Solution

The fourth proportional to 1,434,955.58, 1,980,328.44 and 790,375.61 is: 1,090,767.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,955.58 : 1,980,328.44 = 790,375.61 : x
  2. Step 2: Convert to fraction form
    1,434,955.58/1,980,328.44 = 790,375.61/x
  3. Step 3: Cross multiply
    1,434,955.58x = 1,980,328.44 × 790,375.61
  4. Step 4: Simplify right side
    1,434,955.58x = 1,565,203,291,827.61
  5. Step 5: Solve for x
    x = 1,565,203,291,827.61/1,434,955.58
  6. Step 6: Final answer
    x = 1,090,767.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.