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Finding the Fourth Proportional to 647,947.80, 971,576.10 and 273,547.80

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Solution

The fourth proportional to 647,947.80, 971,576.10 and 273,547.80 is: 410,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,947.80 : 971,576.10 = 273,547.80 : x
  2. Step 2: Convert to fraction form
    647,947.80/971,576.10 = 273,547.80/x
  3. Step 3: Cross multiply
    647,947.80x = 971,576.10 × 273,547.80
  4. Step 4: Simplify right side
    647,947.80x = 265,772,504,687.58
  5. Step 5: Solve for x
    x = 265,772,504,687.58/647,947.80
  6. Step 6: Final answer
    x = 410,175.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.