Home / 851,429.64-1,275,699.24-513,760.77

Finding the Fourth Proportional to 851,429.64, 1,275,699.24 and 513,760.77

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Solution

The fourth proportional to 851,429.64, 1,275,699.24 and 513,760.77 is: 769,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,429.64 : 1,275,699.24 = 513,760.77 : x
  2. Step 2: Convert to fraction form
    851,429.64/1,275,699.24 = 513,760.77/x
  3. Step 3: Cross multiply
    851,429.64x = 1,275,699.24 × 513,760.77
  4. Step 4: Simplify right side
    851,429.64x = 655,404,223,830.82
  5. Step 5: Solve for x
    x = 655,404,223,830.82/851,429.64
  6. Step 6: Final answer
    x = 769,769.10

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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.