Home / 647,631.20-971,446.80-363,029.60

Finding the Fourth Proportional to 647,631.20, 971,446.80 and 363,029.60

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Solution

The fourth proportional to 647,631.20, 971,446.80 and 363,029.60 is: 544,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,631.20 : 971,446.80 = 363,029.60 : x
  2. Step 2: Convert to fraction form
    647,631.20/971,446.80 = 363,029.60/x
  3. Step 3: Cross multiply
    647,631.20x = 971,446.80 × 363,029.60
  4. Step 4: Simplify right side
    647,631.20x = 352,663,943,225.28
  5. Step 5: Solve for x
    x = 352,663,943,225.28/647,631.20
  6. Step 6: Final answer
    x = 544,544.40

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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.