Home / 790,416.94-1,185,814.04-257,938.94

Finding the Fourth Proportional to 790,416.94, 1,185,814.04 and 257,938.94

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Solution

The fourth proportional to 790,416.94, 1,185,814.04 and 257,938.94 is: 386,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,416.94 : 1,185,814.04 = 257,938.94 : x
  2. Step 2: Convert to fraction form
    790,416.94/1,185,814.04 = 257,938.94/x
  3. Step 3: Cross multiply
    790,416.94x = 1,185,814.04 × 257,938.94
  4. Step 4: Simplify right side
    790,416.94x = 305,867,616,514.72
  5. Step 5: Solve for x
    x = 305,867,616,514.72/790,416.94
  6. Step 6: Final answer
    x = 386,969.97

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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.