Home / 378,016.20-565,712.10-346,523.40

Finding the Fourth Proportional to 378,016.20, 565,712.10 and 346,523.40

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Solution

The fourth proportional to 378,016.20, 565,712.10 and 346,523.40 is: 518,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,016.20 : 565,712.10 = 346,523.40 : x
  2. Step 2: Convert to fraction form
    378,016.20/565,712.10 = 346,523.40/x
  3. Step 3: Cross multiply
    378,016.20x = 565,712.10 × 346,523.40
  4. Step 4: Simplify right side
    378,016.20x = 196,032,480,313.14
  5. Step 5: Solve for x
    x = 196,032,480,313.14/378,016.20
  6. Step 6: Final answer
    x = 518,582.22

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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.