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Finding the Fourth Proportional to 539,647.04, 809,509.72 and 207,223.04

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Solution

The fourth proportional to 539,647.04, 809,509.72 and 207,223.04 is: 310,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,647.04 : 809,509.72 = 207,223.04 : x
  2. Step 2: Convert to fraction form
    539,647.04/809,509.72 = 207,223.04/x
  3. Step 3: Cross multiply
    539,647.04x = 809,509.72 × 207,223.04
  4. Step 4: Simplify right side
    539,647.04x = 167,749,065,087.95
  5. Step 5: Solve for x
    x = 167,749,065,087.95/539,647.04
  6. Step 6: Final answer
    x = 310,849.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.