Home / 869,403.40-1,303,586.70-449,499.40

Finding the Fourth Proportional to 869,403.40, 1,303,586.70 and 449,499.40

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Solution

The fourth proportional to 869,403.40, 1,303,586.70 and 449,499.40 is: 673,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,403.40 : 1,303,586.70 = 449,499.40 : x
  2. Step 2: Convert to fraction form
    869,403.40/1,303,586.70 = 449,499.40/x
  3. Step 3: Cross multiply
    869,403.40x = 1,303,586.70 × 449,499.40
  4. Step 4: Simplify right side
    869,403.40x = 585,961,439,497.98
  5. Step 5: Solve for x
    x = 585,961,439,497.98/869,403.40
  6. Step 6: Final answer
    x = 673,981.08

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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.