Home / 899,861.81-1,241,944.52-517,814.78

Finding the Fourth Proportional to 899,861.81, 1,241,944.52 and 517,814.78

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Solution

The fourth proportional to 899,861.81, 1,241,944.52 and 517,814.78 is: 714,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,861.81 : 1,241,944.52 = 517,814.78 : x
  2. Step 2: Convert to fraction form
    899,861.81/1,241,944.52 = 517,814.78/x
  3. Step 3: Cross multiply
    899,861.81x = 1,241,944.52 × 517,814.78
  4. Step 4: Simplify right side
    899,861.81x = 643,097,219,597.21
  5. Step 5: Solve for x
    x = 643,097,219,597.21/899,861.81
  6. Step 6: Final answer
    x = 714,662.20

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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.