Home / 790,443.42-1,185,853.77-257,965.44

Finding the Fourth Proportional to 790,443.42, 1,185,853.77 and 257,965.44

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Solution

The fourth proportional to 790,443.42, 1,185,853.77 and 257,965.44 is: 387,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,443.42 : 1,185,853.77 = 257,965.44 : x
  2. Step 2: Convert to fraction form
    790,443.42/1,185,853.77 = 257,965.44/x
  3. Step 3: Cross multiply
    790,443.42x = 1,185,853.77 × 257,965.44
  4. Step 4: Simplify right side
    790,443.42x = 305,909,289,553.71
  5. Step 5: Solve for x
    x = 305,909,289,553.71/790,443.42
  6. Step 6: Final answer
    x = 387,009.72

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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.