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Finding the Fourth Proportional to 495,433.13, 683,674.83 and 280,574.73

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Solution

The fourth proportional to 495,433.13, 683,674.83 and 280,574.73 is: 387,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,433.13 : 683,674.83 = 280,574.73 : x
  2. Step 2: Convert to fraction form
    495,433.13/683,674.83 = 280,574.73/x
  3. Step 3: Cross multiply
    495,433.13x = 683,674.83 × 280,574.73
  4. Step 4: Simplify right side
    495,433.13x = 191,821,879,827.30
  5. Step 5: Solve for x
    x = 191,821,879,827.30/495,433.13
  6. Step 6: Final answer
    x = 387,180.17

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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.