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Finding the Fourth Proportional to 547,783.74, 825,414.63 and 450,131.46

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Solution

The fourth proportional to 547,783.74, 825,414.63 and 450,131.46 is: 678,269.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,783.74 : 825,414.63 = 450,131.46 : x
  2. Step 2: Convert to fraction form
    547,783.74/825,414.63 = 450,131.46/x
  3. Step 3: Cross multiply
    547,783.74x = 825,414.63 × 450,131.46
  4. Step 4: Simplify right side
    547,783.74x = 371,545,092,507.26
  5. Step 5: Solve for x
    x = 371,545,092,507.26/547,783.74
  6. Step 6: Final answer
    x = 678,269.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.