Home / 851,474.80-1,275,579.20-477,760.24

Finding the Fourth Proportional to 851,474.80, 1,275,579.20 and 477,760.24

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Solution

The fourth proportional to 851,474.80, 1,275,579.20 and 477,760.24 is: 715,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,474.80 : 1,275,579.20 = 477,760.24 : x
  2. Step 2: Convert to fraction form
    851,474.80/1,275,579.20 = 477,760.24/x
  3. Step 3: Cross multiply
    851,474.80x = 1,275,579.20 × 477,760.24
  4. Step 4: Simplify right side
    851,474.80x = 609,421,024,731.01
  5. Step 5: Solve for x
    x = 609,421,024,731.01/851,474.80
  6. Step 6: Final answer
    x = 715,724.09

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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.