Home / 647,631.80-971,025.30-581,276.60

Finding the Fourth Proportional to 647,631.80, 971,025.30 and 581,276.60

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Solution

The fourth proportional to 647,631.80, 971,025.30 and 581,276.60 is: 871,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,631.80 : 971,025.30 = 581,276.60 : x
  2. Step 2: Convert to fraction form
    647,631.80/971,025.30 = 581,276.60/x
  3. Step 3: Cross multiply
    647,631.80x = 971,025.30 × 581,276.60
  4. Step 4: Simplify right side
    647,631.80x = 564,434,284,897.98
  5. Step 5: Solve for x
    x = 564,434,284,897.98/647,631.80
  6. Step 6: Final answer
    x = 871,535.78

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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.