Home / 790,411.57-1,185,805.98-257,933.57

Finding the Fourth Proportional to 790,411.57, 1,185,805.98 and 257,933.57

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Solution

The fourth proportional to 790,411.57, 1,185,805.98 and 257,933.57 is: 386,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,411.57 : 1,185,805.98 = 257,933.57 : x
  2. Step 2: Convert to fraction form
    790,411.57/1,185,805.98 = 257,933.57/x
  3. Step 3: Cross multiply
    790,411.57x = 1,185,805.98 × 257,933.57
  4. Step 4: Simplify right side
    790,411.57x = 305,859,163,819.72
  5. Step 5: Solve for x
    x = 305,859,163,819.72/790,411.57
  6. Step 6: Final answer
    x = 386,961.90

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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.