Home / 786,550.42-1,085,439.81-447,009.94

Finding the Fourth Proportional to 786,550.42, 1,085,439.81 and 447,009.94

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Solution

The fourth proportional to 786,550.42, 1,085,439.81 and 447,009.94 is: 616,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,550.42 : 1,085,439.81 = 447,009.94 : x
  2. Step 2: Convert to fraction form
    786,550.42/1,085,439.81 = 447,009.94/x
  3. Step 3: Cross multiply
    786,550.42x = 1,085,439.81 × 447,009.94
  4. Step 4: Simplify right side
    786,550.42x = 485,202,384,341.71
  5. Step 5: Solve for x
    x = 485,202,384,341.71/786,550.42
  6. Step 6: Final answer
    x = 616,873.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.