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Finding the Fourth Proportional to 495,506.70, 683,895.14 and 323,125.40

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Solution

The fourth proportional to 495,506.70, 683,895.14 and 323,125.40 is: 445,975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,506.70 : 683,895.14 = 323,125.40 : x
  2. Step 2: Convert to fraction form
    495,506.70/683,895.14 = 323,125.40/x
  3. Step 3: Cross multiply
    495,506.70x = 683,895.14 × 323,125.40
  4. Step 4: Simplify right side
    495,506.70x = 220,983,890,670.56
  5. Step 5: Solve for x
    x = 220,983,890,670.56/495,506.70
  6. Step 6: Final answer
    x = 445,975.59

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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.