Home / 826,921.40-1,240,727.70-266,127.80

Finding the Fourth Proportional to 826,921.40, 1,240,727.70 and 266,127.80

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Solution

The fourth proportional to 826,921.40, 1,240,727.70 and 266,127.80 is: 399,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,921.40 : 1,240,727.70 = 266,127.80 : x
  2. Step 2: Convert to fraction form
    826,921.40/1,240,727.70 = 266,127.80/x
  3. Step 3: Cross multiply
    826,921.40x = 1,240,727.70 × 266,127.80
  4. Step 4: Simplify right side
    826,921.40x = 330,192,133,200.06
  5. Step 5: Solve for x
    x = 330,192,133,200.06/826,921.40
  6. Step 6: Final answer
    x = 399,302.92

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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.