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Finding the Fourth Proportional to 565,763.96, 780,775.44 and 339,365.72

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Solution

The fourth proportional to 565,763.96, 780,775.44 and 339,365.72 is: 468,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,763.96 : 780,775.44 = 339,365.72 : x
  2. Step 2: Convert to fraction form
    565,763.96/780,775.44 = 339,365.72/x
  3. Step 3: Cross multiply
    565,763.96x = 780,775.44 × 339,365.72
  4. Step 4: Simplify right side
    565,763.96x = 264,968,419,353.92
  5. Step 5: Solve for x
    x = 264,968,419,353.92/565,763.96
  6. Step 6: Final answer
    x = 468,337.40

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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.