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Finding the Fourth Proportional to 502,443.45, 693,364.10 and 276,084.09

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Solution

The fourth proportional to 502,443.45, 693,364.10 and 276,084.09 is: 380,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,443.45 : 693,364.10 = 276,084.09 : x
  2. Step 2: Convert to fraction form
    502,443.45/693,364.10 = 276,084.09/x
  3. Step 3: Cross multiply
    502,443.45x = 693,364.10 × 276,084.09
  4. Step 4: Simplify right side
    502,443.45x = 191,426,795,206.75
  5. Step 5: Solve for x
    x = 191,426,795,206.75/502,443.45
  6. Step 6: Final answer
    x = 380,991.72

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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.