Home / 705,015.92-1,057,670.40-320,581.64

Finding the Fourth Proportional to 705,015.92, 1,057,670.40 and 320,581.64

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Solution

The fourth proportional to 705,015.92, 1,057,670.40 and 320,581.64 is: 480,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,015.92 : 1,057,670.40 = 320,581.64 : x
  2. Step 2: Convert to fraction form
    705,015.92/1,057,670.40 = 320,581.64/x
  3. Step 3: Cross multiply
    705,015.92x = 1,057,670.40 × 320,581.64
  4. Step 4: Simplify right side
    705,015.92x = 339,069,711,411.46
  5. Step 5: Solve for x
    x = 339,069,711,411.46/705,015.92
  6. Step 6: Final answer
    x = 480,939.08

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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.