Home / 378,022.10-567,033.15-312,412.10

Finding the Fourth Proportional to 378,022.10, 567,033.15 and 312,412.10

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Solution

The fourth proportional to 378,022.10, 567,033.15 and 312,412.10 is: 468,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,022.10 : 567,033.15 = 312,412.10 : x
  2. Step 2: Convert to fraction form
    378,022.10/567,033.15 = 312,412.10/x
  3. Step 3: Cross multiply
    378,022.10x = 567,033.15 × 312,412.10
  4. Step 4: Simplify right side
    378,022.10x = 177,148,017,161.12
  5. Step 5: Solve for x
    x = 177,148,017,161.12/378,022.10
  6. Step 6: Final answer
    x = 468,618.15

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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.