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Finding the Fourth Proportional to 499,900.93, 689,861.38 and 270,457.50

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Solution

The fourth proportional to 499,900.93, 689,861.38 and 270,457.50 is: 373,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,900.93 : 689,861.38 = 270,457.50 : x
  2. Step 2: Convert to fraction form
    499,900.93/689,861.38 = 270,457.50/x
  3. Step 3: Cross multiply
    499,900.93x = 689,861.38 × 270,457.50
  4. Step 4: Simplify right side
    499,900.93x = 186,578,184,181.35
  5. Step 5: Solve for x
    x = 186,578,184,181.35/499,900.93
  6. Step 6: Final answer
    x = 373,230.32

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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.