Home / 999,144.36-1,378,818.24-540,257.83

Finding the Fourth Proportional to 999,144.36, 1,378,818.24 and 540,257.83

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Solution

The fourth proportional to 999,144.36, 1,378,818.24 and 540,257.83 is: 745,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,144.36 : 1,378,818.24 = 540,257.83 : x
  2. Step 2: Convert to fraction form
    999,144.36/1,378,818.24 = 540,257.83/x
  3. Step 3: Cross multiply
    999,144.36x = 1,378,818.24 × 540,257.83
  4. Step 4: Simplify right side
    999,144.36x = 744,917,355,628.61
  5. Step 5: Solve for x
    x = 744,917,355,628.61/999,144.36
  6. Step 6: Final answer
    x = 745,555.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.