Home / 813,066.92-1,220,717.58-413,975.87

Finding the Fourth Proportional to 813,066.92, 1,220,717.58 and 413,975.87

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Solution

The fourth proportional to 813,066.92, 1,220,717.58 and 413,975.87 is: 621,532.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,066.92 : 1,220,717.58 = 413,975.87 : x
  2. Step 2: Convert to fraction form
    813,066.92/1,220,717.58 = 413,975.87/x
  3. Step 3: Cross multiply
    813,066.92x = 1,220,717.58 × 413,975.87
  4. Step 4: Simplify right side
    813,066.92x = 505,347,616,101.21
  5. Step 5: Solve for x
    x = 505,347,616,101.21/813,066.92
  6. Step 6: Final answer
    x = 621,532.63

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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.