Home / 875,788.20-1,313,682.30-314,879.40

Finding the Fourth Proportional to 875,788.20, 1,313,682.30 and 314,879.40

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Solution

The fourth proportional to 875,788.20, 1,313,682.30 and 314,879.40 is: 472,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,788.20 : 1,313,682.30 = 314,879.40 : x
  2. Step 2: Convert to fraction form
    875,788.20/1,313,682.30 = 314,879.40/x
  3. Step 3: Cross multiply
    875,788.20x = 1,313,682.30 × 314,879.40
  4. Step 4: Simplify right side
    875,788.20x = 413,651,494,414.62
  5. Step 5: Solve for x
    x = 413,651,494,414.62/875,788.20
  6. Step 6: Final answer
    x = 472,319.10

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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.