Home / 786,549.42-1,085,438.43-447,008.94

Finding the Fourth Proportional to 786,549.42, 1,085,438.43 and 447,008.94

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Solution

The fourth proportional to 786,549.42, 1,085,438.43 and 447,008.94 is: 616,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,549.42 : 1,085,438.43 = 447,008.94 : x
  2. Step 2: Convert to fraction form
    786,549.42/1,085,438.43 = 447,008.94/x
  3. Step 3: Cross multiply
    786,549.42x = 1,085,438.43 × 447,008.94
  4. Step 4: Simplify right side
    786,549.42x = 485,200,682,029.56
  5. Step 5: Solve for x
    x = 485,200,682,029.56/786,549.42
  6. Step 6: Final answer
    x = 616,872.47

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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.