Home / 790,510.30-1,185,100.98-640,378.28

Finding the Fourth Proportional to 790,510.30, 1,185,100.98 and 640,378.28

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Solution

The fourth proportional to 790,510.30, 1,185,100.98 and 640,378.28 is: 960,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,510.30 : 1,185,100.98 = 640,378.28 : x
  2. Step 2: Convert to fraction form
    790,510.30/1,185,100.98 = 640,378.28/x
  3. Step 3: Cross multiply
    790,510.30x = 1,185,100.98 × 640,378.28
  4. Step 4: Simplify right side
    790,510.30x = 758,912,927,198.72
  5. Step 5: Solve for x
    x = 758,912,927,198.72/790,510.30
  6. Step 6: Final answer
    x = 960,029.14

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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.