Home / 510,060.80-703,869.68-280,616.96

Finding the Fourth Proportional to 510,060.80, 703,869.68 and 280,616.96

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Solution

The fourth proportional to 510,060.80, 703,869.68 and 280,616.96 is: 387,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,060.80 : 703,869.68 = 280,616.96 : x
  2. Step 2: Convert to fraction form
    510,060.80/703,869.68 = 280,616.96/x
  3. Step 3: Cross multiply
    510,060.80x = 703,869.68 × 280,616.96
  4. Step 4: Simplify right side
    510,060.80x = 197,517,769,837.77
  5. Step 5: Solve for x
    x = 197,517,769,837.77/510,060.80
  6. Step 6: Final answer
    x = 387,243.58

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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.