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Finding the Fourth Proportional to 484,650.54, 668,839.68 and 280,710.36

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Solution

The fourth proportional to 484,650.54, 668,839.68 and 280,710.36 is: 387,393.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,650.54 : 668,839.68 = 280,710.36 : x
  2. Step 2: Convert to fraction form
    484,650.54/668,839.68 = 280,710.36/x
  3. Step 3: Cross multiply
    484,650.54x = 668,839.68 × 280,710.36
  4. Step 4: Simplify right side
    484,650.54x = 187,750,227,355.09
  5. Step 5: Solve for x
    x = 187,750,227,355.09/484,650.54
  6. Step 6: Final answer
    x = 387,393.00

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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.