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Finding the Fourth Proportional to 484,935.84, 669,152.61 and 278,193.51

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Solution

The fourth proportional to 484,935.84, 669,152.61 and 278,193.51 is: 383,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,935.84 : 669,152.61 = 278,193.51 : x
  2. Step 2: Convert to fraction form
    484,935.84/669,152.61 = 278,193.51/x
  3. Step 3: Cross multiply
    484,935.84x = 669,152.61 × 278,193.51
  4. Step 4: Simplify right side
    484,935.84x = 186,153,913,301.56
  5. Step 5: Solve for x
    x = 186,153,913,301.56/484,935.84
  6. Step 6: Final answer
    x = 383,873.28

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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.