Home / 851,429.89-1,275,699.54-513,760.99

Finding the Fourth Proportional to 851,429.89, 1,275,699.54 and 513,760.99

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Solution

The fourth proportional to 851,429.89, 1,275,699.54 and 513,760.99 is: 769,769.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,429.89 : 1,275,699.54 = 513,760.99 : x
  2. Step 2: Convert to fraction form
    851,429.89/1,275,699.54 = 513,760.99/x
  3. Step 3: Cross multiply
    851,429.89x = 1,275,699.54 × 513,760.99
  4. Step 4: Simplify right side
    851,429.89x = 655,404,658,612.95
  5. Step 5: Solve for x
    x = 655,404,658,612.95/851,429.89
  6. Step 6: Final answer
    x = 769,769.38

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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.