Home / 509,982.72-703,766.16-283,623.36

Finding the Fourth Proportional to 509,982.72, 703,766.16 and 283,623.36

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Solution

The fourth proportional to 509,982.72, 703,766.16 and 283,623.36 is: 391,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,982.72 : 703,766.16 = 283,623.36 : x
  2. Step 2: Convert to fraction form
    509,982.72/703,766.16 = 283,623.36/x
  3. Step 3: Cross multiply
    509,982.72x = 703,766.16 × 283,623.36
  4. Step 4: Simplify right side
    509,982.72x = 199,604,522,953.50
  5. Step 5: Solve for x
    x = 199,604,522,953.50/509,982.72
  6. Step 6: Final answer
    x = 391,394.68

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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.