Home / 753,342.50-1,039,620.30-409,181.76

Finding the Fourth Proportional to 753,342.50, 1,039,620.30 and 409,181.76

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Solution

The fourth proportional to 753,342.50, 1,039,620.30 and 409,181.76 is: 564,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,342.50 : 1,039,620.30 = 409,181.76 : x
  2. Step 2: Convert to fraction form
    753,342.50/1,039,620.30 = 409,181.76/x
  3. Step 3: Cross multiply
    753,342.50x = 1,039,620.30 × 409,181.76
  4. Step 4: Simplify right side
    753,342.50x = 425,393,664,085.73
  5. Step 5: Solve for x
    x = 425,393,664,085.73/753,342.50
  6. Step 6: Final answer
    x = 564,674.98

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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.