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Finding the Fourth Proportional to 495,468.41, 683,755.41 and 280,653.07

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Solution

The fourth proportional to 495,468.41, 683,755.41 and 280,653.07 is: 387,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,468.41 : 683,755.41 = 280,653.07 : x
  2. Step 2: Convert to fraction form
    495,468.41/683,755.41 = 280,653.07/x
  3. Step 3: Cross multiply
    495,468.41x = 683,755.41 × 280,653.07
  4. Step 4: Simplify right side
    495,468.41x = 191,898,053,236.22
  5. Step 5: Solve for x
    x = 191,898,053,236.22/495,468.41
  6. Step 6: Final answer
    x = 387,306.34

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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.