Home / 647,623.20-971,434.80-363,021.60

Finding the Fourth Proportional to 647,623.20, 971,434.80 and 363,021.60

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Solution

The fourth proportional to 647,623.20, 971,434.80 and 363,021.60 is: 544,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,623.20 : 971,434.80 = 363,021.60 : x
  2. Step 2: Convert to fraction form
    647,623.20/971,434.80 = 363,021.60/x
  3. Step 3: Cross multiply
    647,623.20x = 971,434.80 × 363,021.60
  4. Step 4: Simplify right side
    647,623.20x = 352,651,815,391.68
  5. Step 5: Solve for x
    x = 352,651,815,391.68/647,623.20
  6. Step 6: Final answer
    x = 544,532.40

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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.