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Finding the Fourth Proportional to 484,945.84, 669,166.40 and 278,203.52

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Solution

The fourth proportional to 484,945.84, 669,166.40 and 278,203.52 is: 383,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,945.84 : 669,166.40 = 278,203.52 : x
  2. Step 2: Convert to fraction form
    484,945.84/669,166.40 = 278,203.52/x
  3. Step 3: Cross multiply
    484,945.84x = 669,166.40 × 278,203.52
  4. Step 4: Simplify right side
    484,945.84x = 186,164,447,945.73
  5. Step 5: Solve for x
    x = 186,164,447,945.73/484,945.84
  6. Step 6: Final answer
    x = 383,887.09

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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.