Home / 742,765.92-1,025,861.16-500,631.12

Finding the Fourth Proportional to 742,765.92, 1,025,861.16 and 500,631.12

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Solution

The fourth proportional to 742,765.92, 1,025,861.16 and 500,631.12 is: 691,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,765.92 : 1,025,861.16 = 500,631.12 : x
  2. Step 2: Convert to fraction form
    742,765.92/1,025,861.16 = 500,631.12/x
  3. Step 3: Cross multiply
    742,765.92x = 1,025,861.16 × 500,631.12
  4. Step 4: Simplify right side
    742,765.92x = 513,578,021,495.30
  5. Step 5: Solve for x
    x = 513,578,021,495.30/742,765.92
  6. Step 6: Final answer
    x = 691,439.94

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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.