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Finding the Fourth Proportional to 540,102.54, 745,356.56 and 298,400.70

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Solution

The fourth proportional to 540,102.54, 745,356.56 and 298,400.70 is: 411,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,102.54 : 745,356.56 = 298,400.70 : x
  2. Step 2: Convert to fraction form
    540,102.54/745,356.56 = 298,400.70/x
  3. Step 3: Cross multiply
    540,102.54x = 745,356.56 × 298,400.70
  4. Step 4: Simplify right side
    540,102.54x = 222,414,917,761.59
  5. Step 5: Solve for x
    x = 222,414,917,761.59/540,102.54
  6. Step 6: Final answer
    x = 411,801.28

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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.