Home / 790,443.92-1,185,854.52-257,965.94

Finding the Fourth Proportional to 790,443.92, 1,185,854.52 and 257,965.94

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Solution

The fourth proportional to 790,443.92, 1,185,854.52 and 257,965.94 is: 387,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,443.92 : 1,185,854.52 = 257,965.94 : x
  2. Step 2: Convert to fraction form
    790,443.92/1,185,854.52 = 257,965.94/x
  3. Step 3: Cross multiply
    790,443.92x = 1,185,854.52 × 257,965.94
  4. Step 4: Simplify right side
    790,443.92x = 305,910,075,955.05
  5. Step 5: Solve for x
    x = 305,910,075,955.05/790,443.92
  6. Step 6: Final answer
    x = 387,010.47

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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.