Home / 513,728.04-708,982.08-287,446.44

Finding the Fourth Proportional to 513,728.04, 708,982.08 and 287,446.44

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Solution

The fourth proportional to 513,728.04, 708,982.08 and 287,446.44 is: 396,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,728.04 : 708,982.08 = 287,446.44 : x
  2. Step 2: Convert to fraction form
    513,728.04/708,982.08 = 287,446.44/x
  3. Step 3: Cross multiply
    513,728.04x = 708,982.08 × 287,446.44
  4. Step 4: Simplify right side
    513,728.04x = 203,794,374,919.80
  5. Step 5: Solve for x
    x = 203,794,374,919.80/513,728.04
  6. Step 6: Final answer
    x = 396,697.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.