Home / 851,542.98-1,275,868.95-513,874.20

Finding the Fourth Proportional to 851,542.98, 1,275,868.95 and 513,874.20

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Solution

The fourth proportional to 851,542.98, 1,275,868.95 and 513,874.20 is: 769,938.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,542.98 : 1,275,868.95 = 513,874.20 : x
  2. Step 2: Convert to fraction form
    851,542.98/1,275,868.95 = 513,874.20/x
  3. Step 3: Cross multiply
    851,542.98x = 1,275,868.95 × 513,874.20
  4. Step 4: Simplify right side
    851,542.98x = 655,636,135,986.09
  5. Step 5: Solve for x
    x = 655,636,135,986.09/851,542.98
  6. Step 6: Final answer
    x = 769,938.98

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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.