Home / 1,434,919.44-1,980,278.65-790,339.47

Finding the Fourth Proportional to 1,434,919.44, 1,980,278.65 and 790,339.47

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Solution

The fourth proportional to 1,434,919.44, 1,980,278.65 and 790,339.47 is: 1,090,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,919.44 : 1,980,278.65 = 790,339.47 : x
  2. Step 2: Convert to fraction form
    1,434,919.44/1,980,278.65 = 790,339.47/x
  3. Step 3: Cross multiply
    1,434,919.44x = 1,980,278.65 × 790,339.47
  4. Step 4: Simplify right side
    1,434,919.44x = 1,565,092,378,693.32
  5. Step 5: Solve for x
    x = 1,565,092,378,693.32/1,434,919.44
  6. Step 6: Final answer
    x = 1,090,717.94

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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.