Home / 790,112.88-1,185,292.44-257,510.34

Finding the Fourth Proportional to 790,112.88, 1,185,292.44 and 257,510.34

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Solution

The fourth proportional to 790,112.88, 1,185,292.44 and 257,510.34 is: 386,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,112.88 : 1,185,292.44 = 257,510.34 : x
  2. Step 2: Convert to fraction form
    790,112.88/1,185,292.44 = 257,510.34/x
  3. Step 3: Cross multiply
    790,112.88x = 1,185,292.44 × 257,510.34
  4. Step 4: Simplify right side
    790,112.88x = 305,225,059,223.83
  5. Step 5: Solve for x
    x = 305,225,059,223.83/790,112.88
  6. Step 6: Final answer
    x = 386,305.64

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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.