Home / 971,125.50-1,340,137.80-541,431.84

Finding the Fourth Proportional to 971,125.50, 1,340,137.80 and 541,431.84

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Solution

The fourth proportional to 971,125.50, 1,340,137.80 and 541,431.84 is: 747,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,125.50 : 1,340,137.80 = 541,431.84 : x
  2. Step 2: Convert to fraction form
    971,125.50/1,340,137.80 = 541,431.84/x
  3. Step 3: Cross multiply
    971,125.50x = 1,340,137.80 × 541,431.84
  4. Step 4: Simplify right side
    971,125.50x = 725,593,274,907.55
  5. Step 5: Solve for x
    x = 725,593,274,907.55/971,125.50
  6. Step 6: Final answer
    x = 747,167.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.