Home / 790,473.88-1,185,899.76-257,995.90

Finding the Fourth Proportional to 790,473.88, 1,185,899.76 and 257,995.90

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Solution

The fourth proportional to 790,473.88, 1,185,899.76 and 257,995.90 is: 387,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,473.88 : 1,185,899.76 = 257,995.90 : x
  2. Step 2: Convert to fraction form
    790,473.88/1,185,899.76 = 257,995.90/x
  3. Step 3: Cross multiply
    790,473.88x = 1,185,899.76 × 257,995.90
  4. Step 4: Simplify right side
    790,473.88x = 305,957,275,890.98
  5. Step 5: Solve for x
    x = 305,957,275,890.98/790,473.88
  6. Step 6: Final answer
    x = 387,055.52

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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.