Home / 378,039.20-565,746.60-346,546.40

Finding the Fourth Proportional to 378,039.20, 565,746.60 and 346,546.40

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Solution

The fourth proportional to 378,039.20, 565,746.60 and 346,546.40 is: 518,616.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,039.20 : 565,746.60 = 346,546.40 : x
  2. Step 2: Convert to fraction form
    378,039.20/565,746.60 = 346,546.40/x
  3. Step 3: Cross multiply
    378,039.20x = 565,746.60 × 346,546.40
  4. Step 4: Simplify right side
    378,039.20x = 196,057,447,542.24
  5. Step 5: Solve for x
    x = 196,057,447,542.24/378,039.20
  6. Step 6: Final answer
    x = 518,616.71

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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.