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Finding the Fourth Proportional to 484,768.64, 668,955.06 and 278,026.35

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Solution

The fourth proportional to 484,768.64, 668,955.06 and 278,026.35 is: 383,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,768.64 : 668,955.06 = 278,026.35 : x
  2. Step 2: Convert to fraction form
    484,768.64/668,955.06 = 278,026.35/x
  3. Step 3: Cross multiply
    484,768.64x = 668,955.06 × 278,026.35
  4. Step 4: Simplify right side
    484,768.64x = 185,987,133,645.83
  5. Step 5: Solve for x
    x = 185,987,133,645.83/484,768.64
  6. Step 6: Final answer
    x = 383,661.65

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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.