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Finding the Fourth Proportional to 649,110.80, 973,435.80 and 449,430.80

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Solution

The fourth proportional to 649,110.80, 973,435.80 and 449,430.80 is: 673,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,110.80 : 973,435.80 = 449,430.80 : x
  2. Step 2: Convert to fraction form
    649,110.80/973,435.80 = 449,430.80/x
  3. Step 3: Cross multiply
    649,110.80x = 973,435.80 × 449,430.80
  4. Step 4: Simplify right side
    649,110.80x = 437,492,030,342.64
  5. Step 5: Solve for x
    x = 437,492,030,342.64/649,110.80
  6. Step 6: Final answer
    x = 673,986.68

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1.5x scale

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.