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Finding the Fourth Proportional to 484,941.84, 669,160.89 and 278,199.51

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Solution

The fourth proportional to 484,941.84, 669,160.89 and 278,199.51 is: 383,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,941.84 : 669,160.89 = 278,199.51 : x
  2. Step 2: Convert to fraction form
    484,941.84/669,160.89 = 278,199.51/x
  3. Step 3: Cross multiply
    484,941.84x = 669,160.89 × 278,199.51
  4. Step 4: Simplify right side
    484,941.84x = 186,160,231,709.16
  5. Step 5: Solve for x
    x = 186,160,231,709.16/484,941.84
  6. Step 6: Final answer
    x = 383,881.56

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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.