Home / 1,057,633.40-1,587,357.30-426,999.80

Finding the Fourth Proportional to 1,057,633.40, 1,587,357.30 and 426,999.80

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Solution

The fourth proportional to 1,057,633.40, 1,587,357.30 and 426,999.80 is: 640,865.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,633.40 : 1,587,357.30 = 426,999.80 : x
  2. Step 2: Convert to fraction form
    1,057,633.40/1,587,357.30 = 426,999.80/x
  3. Step 3: Cross multiply
    1,057,633.40x = 1,587,357.30 × 426,999.80
  4. Step 4: Simplify right side
    1,057,633.40x = 677,801,249,628.54
  5. Step 5: Solve for x
    x = 677,801,249,628.54/1,057,633.40
  6. Step 6: Final answer
    x = 640,865.97

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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.