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Finding the Fourth Proportional to 649,969.70, 975,530.55 and 383,396.90

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Solution

The fourth proportional to 649,969.70, 975,530.55 and 383,396.90 is: 575,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,969.70 : 975,530.55 = 383,396.90 : x
  2. Step 2: Convert to fraction form
    649,969.70/975,530.55 = 383,396.90/x
  3. Step 3: Cross multiply
    649,969.70x = 975,530.55 × 383,396.90
  4. Step 4: Simplify right side
    649,969.70x = 374,015,388,725.30
  5. Step 5: Solve for x
    x = 374,015,388,725.30/649,969.70
  6. Step 6: Final answer
    x = 575,435.11

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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.