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Finding the Fourth Proportional to 565,321.24, 780,106.62 and 323,605.72

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Solution

The fourth proportional to 565,321.24, 780,106.62 and 323,605.72 is: 446,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,321.24 : 780,106.62 = 323,605.72 : x
  2. Step 2: Convert to fraction form
    565,321.24/780,106.62 = 323,605.72/x
  3. Step 3: Cross multiply
    565,321.24x = 780,106.62 × 323,605.72
  4. Step 4: Simplify right side
    565,321.24x = 252,446,964,441.87
  5. Step 5: Solve for x
    x = 252,446,964,441.87/565,321.24
  6. Step 6: Final answer
    x = 446,554.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.