Home / 510,008.56-703,811.82-280,569.04

Finding the Fourth Proportional to 510,008.56, 703,811.82 and 280,569.04

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Solution

The fourth proportional to 510,008.56, 703,811.82 and 280,569.04 is: 387,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,008.56 : 703,811.82 = 280,569.04 : x
  2. Step 2: Convert to fraction form
    510,008.56/703,811.82 = 280,569.04/x
  3. Step 3: Cross multiply
    510,008.56x = 703,811.82 × 280,569.04
  4. Step 4: Simplify right side
    510,008.56x = 197,467,806,678.05
  5. Step 5: Solve for x
    x = 197,467,806,678.05/510,008.56
  6. Step 6: Final answer
    x = 387,185.28

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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.