Home / 875,645.70-1,313,468.55-314,736.90

Finding the Fourth Proportional to 875,645.70, 1,313,468.55 and 314,736.90

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Solution

The fourth proportional to 875,645.70, 1,313,468.55 and 314,736.90 is: 472,105.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,645.70 : 1,313,468.55 = 314,736.90 : x
  2. Step 2: Convert to fraction form
    875,645.70/1,313,468.55 = 314,736.90/x
  3. Step 3: Cross multiply
    875,645.70x = 1,313,468.55 × 314,736.90
  4. Step 4: Simplify right side
    875,645.70x = 413,397,019,674.50
  5. Step 5: Solve for x
    x = 413,397,019,674.50/875,645.70
  6. Step 6: Final answer
    x = 472,105.35

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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.