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Finding the Fourth Proportional to 495,364.20, 683,602.53 and 280,504.20

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Solution

The fourth proportional to 495,364.20, 683,602.53 and 280,504.20 is: 387,095.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,364.20 : 683,602.53 = 280,504.20 : x
  2. Step 2: Convert to fraction form
    495,364.20/683,602.53 = 280,504.20/x
  3. Step 3: Cross multiply
    495,364.20x = 683,602.53 × 280,504.20
  4. Step 4: Simplify right side
    495,364.20x = 191,753,380,795.63
  5. Step 5: Solve for x
    x = 191,753,380,795.63/495,364.20
  6. Step 6: Final answer
    x = 387,095.76

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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.