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Finding the Fourth Proportional to 383,506.40, 575,259.60 and 324,457.40

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Solution

The fourth proportional to 383,506.40, 575,259.60 and 324,457.40 is: 486,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,506.40 : 575,259.60 = 324,457.40 : x
  2. Step 2: Convert to fraction form
    383,506.40/575,259.60 = 324,457.40/x
  3. Step 3: Cross multiply
    383,506.40x = 575,259.60 × 324,457.40
  4. Step 4: Simplify right side
    383,506.40x = 186,647,234,141.04
  5. Step 5: Solve for x
    x = 186,647,234,141.04/383,506.40
  6. Step 6: Final answer
    x = 486,686.10

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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.