Home / 790,378.32-1,185,789.48-317,395.84

Finding the Fourth Proportional to 790,378.32, 1,185,789.48 and 317,395.84

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Solution

The fourth proportional to 790,378.32, 1,185,789.48 and 317,395.84 is: 476,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,378.32 : 1,185,789.48 = 317,395.84 : x
  2. Step 2: Convert to fraction form
    790,378.32/1,185,789.48 = 317,395.84/x
  3. Step 3: Cross multiply
    790,378.32x = 1,185,789.48 × 317,395.84
  4. Step 4: Simplify right side
    790,378.32x = 376,364,648,067.76
  5. Step 5: Solve for x
    x = 376,364,648,067.76/790,378.32
  6. Step 6: Final answer
    x = 476,182.91

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Double scale
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1.5x scale

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.