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Finding the Fourth Proportional to 502,661.55, 693,441.75 and 445,359.33

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Solution

The fourth proportional to 502,661.55, 693,441.75 and 445,359.33 is: 614,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,661.55 : 693,441.75 = 445,359.33 : x
  2. Step 2: Convert to fraction form
    502,661.55/693,441.75 = 445,359.33/x
  3. Step 3: Cross multiply
    502,661.55x = 693,441.75 × 445,359.33
  4. Step 4: Simplify right side
    502,661.55x = 308,830,753,174.03
  5. Step 5: Solve for x
    x = 308,830,753,174.03/502,661.55
  6. Step 6: Final answer
    x = 614,391.04

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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.