Home / 438,935.46-605,710.98-275,676.30

Finding the Fourth Proportional to 438,935.46, 605,710.98 and 275,676.30

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Solution

The fourth proportional to 438,935.46, 605,710.98 and 275,676.30 is: 380,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,935.46 : 605,710.98 = 275,676.30 : x
  2. Step 2: Convert to fraction form
    438,935.46/605,710.98 = 275,676.30/x
  3. Step 3: Cross multiply
    438,935.46x = 605,710.98 × 275,676.30
  4. Step 4: Simplify right side
    438,935.46x = 166,980,161,835.77
  5. Step 5: Solve for x
    x = 166,980,161,835.77/438,935.46
  6. Step 6: Final answer
    x = 380,420.76

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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.