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Finding the Fourth Proportional to 647,627.70, 971,441.55 and 363,026.10

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Solution

The fourth proportional to 647,627.70, 971,441.55 and 363,026.10 is: 544,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,627.70 : 971,441.55 = 363,026.10 : x
  2. Step 2: Convert to fraction form
    647,627.70/971,441.55 = 363,026.10/x
  3. Step 3: Cross multiply
    647,627.70x = 971,441.55 × 363,026.10
  4. Step 4: Simplify right side
    647,627.70x = 352,658,637,274.46
  5. Step 5: Solve for x
    x = 352,658,637,274.46/647,627.70
  6. Step 6: Final answer
    x = 544,539.15

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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.