Home / 579,731.20-869,164.80-299,449.60

Finding the Fourth Proportional to 579,731.20, 869,164.80 and 299,449.60

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Solution

The fourth proportional to 579,731.20, 869,164.80 and 299,449.60 is: 448,951.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,731.20 : 869,164.80 = 299,449.60 : x
  2. Step 2: Convert to fraction form
    579,731.20/869,164.80 = 299,449.60/x
  3. Step 3: Cross multiply
    579,731.20x = 869,164.80 × 299,449.60
  4. Step 4: Simplify right side
    579,731.20x = 260,271,051,694.08
  5. Step 5: Solve for x
    x = 260,271,051,694.08/579,731.20
  6. Step 6: Final answer
    x = 448,951.26

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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.