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Finding the Fourth Proportional to 620,868.10, 930,523.40 and 265,464.94

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Solution

The fourth proportional to 620,868.10, 930,523.40 and 265,464.94 is: 397,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,868.10 : 930,523.40 = 265,464.94 : x
  2. Step 2: Convert to fraction form
    620,868.10/930,523.40 = 265,464.94/x
  3. Step 3: Cross multiply
    620,868.10x = 930,523.40 × 265,464.94
  4. Step 4: Simplify right side
    620,868.10x = 247,021,338,549.60
  5. Step 5: Solve for x
    x = 247,021,338,549.60/620,868.10
  6. Step 6: Final answer
    x = 397,864.44

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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.