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Finding the Fourth Proportional to 649,686.80, 973,147.80 and 539,094.80

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Solution

The fourth proportional to 649,686.80, 973,147.80 and 539,094.80 is: 807,495.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,686.80 : 973,147.80 = 539,094.80 : x
  2. Step 2: Convert to fraction form
    649,686.80/973,147.80 = 539,094.80/x
  3. Step 3: Cross multiply
    649,686.80x = 973,147.80 × 539,094.80
  4. Step 4: Simplify right side
    649,686.80x = 524,618,918,611.44
  5. Step 5: Solve for x
    x = 524,618,918,611.44/649,686.80
  6. Step 6: Final answer
    x = 807,495.12

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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.