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Finding the Fourth Proportional to 540,393.84, 745,782.09 and 298,671.22

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Solution

The fourth proportional to 540,393.84, 745,782.09 and 298,671.22 is: 412,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,393.84 : 745,782.09 = 298,671.22 : x
  2. Step 2: Convert to fraction form
    540,393.84/745,782.09 = 298,671.22/x
  3. Step 3: Cross multiply
    540,393.84x = 745,782.09 × 298,671.22
  4. Step 4: Simplify right side
    540,393.84x = 222,743,646,674.45
  5. Step 5: Solve for x
    x = 222,743,646,674.45/540,393.84
  6. Step 6: Final answer
    x = 412,187.61

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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.