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Finding the Third Proportional to 508,720.50 and 809,779.50

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Solution

The third proportional to 508,720.50 and 809,779.50 is: 1,289,004.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,720.50 : 809,779.50 = 809,779.50 : x
  2. Step 2: Convert to fraction form
    508,720.50/809,779.50 = 809,779.50/x
  3. Step 3: Cross multiply
    508,720.50x = 809,779.50 × 809,779.50
  4. Step 4: Simplify right side
    508,720.50x = 655,742,838,620.25
  5. Step 5: Solve for x
    x = 655,742,838,620.25/508,720.50
  6. Step 6: Final answer
    x = 1,289,004.16

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.