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Finding the Fourth Proportional to 647,631.70, 971,447.55 and 363,030.10

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Solution

The fourth proportional to 647,631.70, 971,447.55 and 363,030.10 is: 544,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,631.70 : 971,447.55 = 363,030.10 : x
  2. Step 2: Convert to fraction form
    647,631.70/971,447.55 = 363,030.10/x
  3. Step 3: Cross multiply
    647,631.70x = 971,447.55 × 363,030.10
  4. Step 4: Simplify right side
    647,631.70x = 352,664,701,221.26
  5. Step 5: Solve for x
    x = 352,664,701,221.26/647,631.70
  6. Step 6: Final answer
    x = 544,545.15

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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.