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Finding the Fourth Proportional to 540,639.06, 811,292.10 and 274,590.51

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Solution

The fourth proportional to 540,639.06, 811,292.10 and 274,590.51 is: 412,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,639.06 : 811,292.10 = 274,590.51 : x
  2. Step 2: Convert to fraction form
    540,639.06/811,292.10 = 274,590.51/x
  3. Step 3: Cross multiply
    540,639.06x = 811,292.10 × 274,590.51
  4. Step 4: Simplify right side
    540,639.06x = 222,773,111,497.97
  5. Step 5: Solve for x
    x = 222,773,111,497.97/540,639.06
  6. Step 6: Final answer
    x = 412,055.15

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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.