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Finding the Third Proportional to 358,803.50 and 578,124.75

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Solution

The third proportional to 358,803.50 and 578,124.75 is: 931,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,803.50 : 578,124.75 = 578,124.75 : x
  2. Step 2: Convert to fraction form
    358,803.50/578,124.75 = 578,124.75/x
  3. Step 3: Cross multiply
    358,803.50x = 578,124.75 × 578,124.75
  4. Step 4: Simplify right side
    358,803.50x = 334,228,226,562.56
  5. Step 5: Solve for x
    x = 334,228,226,562.56/358,803.50
  6. Step 6: Final answer
    x = 931,507.71

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.