Home / 495,344.72-683,528.40-280,442.84

Finding the Fourth Proportional to 495,344.72, 683,528.40 and 280,442.84

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Solution

The fourth proportional to 495,344.72, 683,528.40 and 280,442.84 is: 386,984.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,344.72 : 683,528.40 = 280,442.84 : x
  2. Step 2: Convert to fraction form
    495,344.72/683,528.40 = 280,442.84/x
  3. Step 3: Cross multiply
    495,344.72x = 683,528.40 × 280,442.84
  4. Step 4: Simplify right side
    495,344.72x = 191,690,645,716.66
  5. Step 5: Solve for x
    x = 191,690,645,716.66/495,344.72
  6. Step 6: Final answer
    x = 386,984.33

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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.