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Finding the Fourth Proportional to 565,166.40, 780,134.67 and 374,241.30

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Solution

The fourth proportional to 565,166.40, 780,134.67 and 374,241.30 is: 516,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,166.40 : 780,134.67 = 374,241.30 : x
  2. Step 2: Convert to fraction form
    565,166.40/780,134.67 = 374,241.30/x
  3. Step 3: Cross multiply
    565,166.40x = 780,134.67 × 374,241.30
  4. Step 4: Simplify right side
    565,166.40x = 291,958,613,075.87
  5. Step 5: Solve for x
    x = 291,958,613,075.87/565,166.40
  6. Step 6: Final answer
    x = 516,588.77

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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.