Home / 495,980.12-684,408.78-275,222.94

Finding the Fourth Proportional to 495,980.12, 684,408.78 and 275,222.94

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Solution

The fourth proportional to 495,980.12, 684,408.78 and 275,222.94 is: 379,783.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,980.12 : 684,408.78 = 275,222.94 : x
  2. Step 2: Convert to fraction form
    495,980.12/684,408.78 = 275,222.94/x
  3. Step 3: Cross multiply
    495,980.12x = 684,408.78 × 275,222.94
  4. Step 4: Simplify right side
    495,980.12x = 188,364,996,593.41
  5. Step 5: Solve for x
    x = 188,364,996,593.41/495,980.12
  6. Step 6: Final answer
    x = 379,783.36

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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.